Elena swallowed her birth control pill dry, grimacing at the bitter film it left on her tongue. The bathroom mirror reflected a girl who looked like she'd been through a war—tangled dark hair, a bruise blooming purple on her collarbone where Axel's teeth had been, dark circles under her eyes from the three hours of sleep she'd actually managed. She splashed cold water on her face, twice, and when she padded back into the living room in Axel's hoodie and nothing else, Wilder was already there. Sitting at the coffee table. Textbooks open. Pen in hand. He didn't look up when she sat down across from him.
"You're up early," she said, her voice rough.
"Couldn't sleep." His pen tapped against the margin of his notebook. "Too much noise in my head." The double meaning hung there, and she felt heat creep up her neck. He still wasn't looking at her. "Ma'am," he added, softer, and that single word—the deferential title he always used—somehow made it worse. Like he was reminding her of exactly who she was supposed to be in this house.
The first hour was agony. Every time she shifted on the floor cushion, the ache between her thighs flared fresh. She'd catch herself wincing, and Wilder would jerk his gaze away like he'd been burned, his ears going red. She tried to focus on the diagram he was drawing—the brachial plexus, nerves branching like a river delta—but her handwriting kept wobbling. Her hand kept trembling. Because she remembered exactly which muscles Axel had bitten into last night, exactly which nerves had fired when she came screaming his name.
"Okay," she said, slapping her palm flat on the table. "Switch subjects. We're doing muscles today. Skeletal muscle anatomy."
Wilder blinked at her. "We haven't finished—"
"You know the brachial plexus cold. Trust me. I'm the teacher." She grabbed a fresh marker from her bag, red, and uncapped it with her teeth. "Stand up."
He stood. Lean and tall, all elbows and long bones, his hoodie hanging loose on his frame. She circled the table and stopped in front of him, close enough to smell his deodorant—clean, something with bergamot. Different from Axel's leather-and-oil musk.
"The trapezius," she said, and pressed her fingers to the back of his neck, where the muscle sloped down to his shoulder. He went rigid under her touch. "Originates here. Inserts along the clavicle and scapular spine. It elevates, retracts, and rotates the scapula." She traced the path with her fingertips, light, clinical. "Feel that?"
His throat moved when he swallowed. "Yeah."
"Good. Now you show me where the deltoid attaches."
His hand came up, hesitant, and she watched him map the muscle with his own fingers, touching his own shoulder. "Here. The lateral third of the clavicle and the acromion."
"And the insertion?"
"Deltoid tuberosity of the humerus." He said it like he was reciting a prayer.
She smiled. Genuine pride warming her chest. "You're going to ace this exam, Wilder." She uncapped the red marker and drew a careful line along her own forearm, from wrist to elbow. "The brachioradialis. It flexes the forearm at the elbow. See how it runs along the radial side?" She held her arm out for him to see. The ink was wet, glossy against her pale skin.
He leaned in, studying the line. His breath was warm on her wrist. "Can I—" He stopped. Cleared his throat. "Can I draw it on myself too?"
"Show me where you think it goes."
His fingers found the spot on his own arm, tracing the muscle belly. She watched his focus—those green eyes narrowed, tongue caught between his teeth—and felt a pang of something that was probably too close to affection. He was so earnest. So unlike his brother.
"Not quite." She reached out and corrected his hand, guiding his fingers higher on his forearm. "There. The origin is the lateral supracondylar ridge. You were too far distal."
He looked at where her hand touched his. "Right. Sorry."
"Don't apologize. That's how you learn."
They worked in quiet for another twenty minutes. She'd explain a muscle, demonstrate on her own body or his, and he'd parrot back the origin and insertion. She drew on her wrist again—the flexor carpi radialis, the palmaris longus, the tendons that would stand out when she curled her fingers. The marker was starting to smudge from her sweat.
Then she bent to pick up the textbook, and the movement pulled at her sore lower back, and she couldn't stop the small gasp that escaped her. Her hand flew to her hip, pressing against the ache there. And Wilder's face went red. He didn't look at her. He stared at the wall, at the floor, at his own hands—anywhere but at her wincing, anywhere but at the obvious evidence of what his brother had done to her.
The silence stretched. Became unbearable.
"It's like… 4 am…"
The voice came from the hallway, rough with sleep. Both of them turned.
Axel stood in the bathroom doorway, shirtless, his light brown hair a catastrophe of bed-tangles. He was stretching—arms above his head, spine arching, every muscle in his torso pulling taut. The tattoos on his arms rippled. The silver ring in his ear caught the dim lamp light. He yawned, jaw cracking, and scratched his stomach absently, completely unaware of the tension he'd just walked into.
Elena and Wilder stared at each other.
The slow smile that spread across Wilder's face was almost unsettling. It was the same smile Axel wore when he was about to do something reckless. She'd never seen it on the younger brother before.
She felt her own mouth curve in answer.
"Axel," she said, her voice sweet. Dangerously sweet. "Come here."
He squinted at her, blinking sleep from his eyes. "Why?"
"I need your body."
That woke him up. His eyebrows shot up, and he looked between her and Wilder, something calculating flickering in his hazel-green eyes. "For what?"
"Educational purposes."
Thirty seconds later, Axel was sprawled on the living room floor on his back, staring up at the ceiling with the expression of a man who had been betrayed by everyone he loved. His arms were pinned above his head—he'd put them there himself, at Elena's instruction—and his chest rose and fell with a long, suffering sigh.
"What type of human slavery is this," he grumbled.
"The knowledgeable kind," Elena and Wilder said in unison, in the exact same flat, matter-of-fact tone, and then they both froze, looked at each other, and burst into identical grins.
"That was creepy," Axel said. "You sounded like a cult."
"Shut up and hold still." Elena knelt beside him, uncapping the black marker. She started with his pectorals—the clavicular head, tracing the line where it met the sternum. The muscle jumped under her touch. "This is where the pectoralis major originates. Clavicle, sternum, costal cartilages. Inserts on the greater tubercle of the humerus." She wrote the label neatly along his skin: Pec Major (Clavicular Head).
Wilder was on the other side, a blue marker in his hand. He studied his brother's arm with the focus of a surgeon, then began drawing along the biceps. "Biceps brachii. Long head originates at the supraglenoid tubercle, short head at the coracoid process. Inserts at the radial tuberosity."
"Why are you touching my arm while you say that," Axel said flatly.
"Because I'm showing you the muscle."
"I didn't ask to be shown."
"You didn't ask for a lot of things," Elena murmured, and she felt him tense under her marker. She looked up. His eyes had gone darker, fixed on her face. The air between them shifted, a charge that hadn't been there a moment ago. She looked back down at his chest. Drew the serratus anterior along his ribs. Labeled it. Her hand was steady. Her pulse was not.
Wilder, oblivious or pretending to be, moved to Axel's shoulder. "Deltoid. Three heads. Anterior, lateral, posterior." He traced the curve of the muscle, his fingers careful. "Anterior originates at the lateral clavicle. Lateral at the acromion. Posterior at the scapular spine."
"You're enjoying this," Axel said.
"Yes." Wilder didn't even hesitate. "This is the most interesting anatomy lesson I've ever had."
"Because you get to draw on me like a coloring book."
"Because I get to see the muscles on an actual moving body instead of a diagram." Wilder's marker was steady. "The way the fibers run. The tension. The definition." He met Axel's eyes. "You have good muscle development. Probably from all that time under the motorcycle."
Axel blinked. "Was that a compliment?"
"It was an observation."
Elena smothered a laugh. She moved lower, to the abdominal wall. The rectus abdominis ran in a clean band down his stomach, and she drew the tendinous intersections, the six-pack lines that divided the muscle into segments. She wrote Rectus Abdominis in neat print along his skin, and when she reached the lower edge, her knuckles brushed the waistband of his sweatpants. He inhaled sharply.
She didn't look up. "External obliques," she said, her voice steady, and drew the diagonal lines along his sides. Labeled them. Then the transversus abdominis, deeper, though she couldn't see it—she drew the line where it would be, and her fingers pressed into his skin, feeling the muscle beneath the surface.
Wilder had moved to the legs. He drew the quadriceps—rectus femoris, vastus lateralis, vastus medialis, vastus intermedius—along Axel's thigh, labeling each one with careful precision. Axel's jaw was tight. His hands, still above his head, had curled into fists.
"You okay?" Elena asked, too innocent.
"Fine."
"You're tense. Relax your muscles."
"I can't relax while you're drawing on my stomach."
"Why not?"
He didn't answer. But when she risked a glance at his face, his pupils were blown wide, and there was a flush creeping up his neck. She bit the inside of her cheek to keep from smiling and kept drawing.
Wilder finished the quadriceps and moved to the hamstrings, requiring Axel to roll onto his stomach. He complied with the air of a martyr. Elena drew the trapezius across his upper back, the rhomboids between his shoulder blades, the latissimus dorsi sweeping down his spine. The tattoos on his arms and back were part of the landscape now—she drew around them, incorporated them, labeled where muscle peeked through ink.
When she reached his lumbar spine, he made a small sound. A grunt, barely audible, as her fingers pressed into the erector spinae.
"Sensitive?" she asked.
"Your hands are cold." His voice was rough.
"The marker is room temperature." She drew the line of the multifidus, the deep back muscles that ran along the vertebrae. "These stabilize your spine. They're what let you twist and bend without hurting yourself."
Wilder was working on the calves now, drawing the gastrocnemius and soleus, labeling the Achilles tendon where it ran down to the heel. He worked in quiet focus, and when he was done, he sat back on his heels and surveyed his work.
"We're missing some," he said.
"The glutes?" Elena offered.
"We can't do those without—" Wilder stopped. Turned red.
"Without making it weird?" Axel's voice came from the floor, muffled where his face was pressed into his folded arms. "Too late for that, baby brother. You've already turned me into a anatomy chart."
"I can do the glutes without making it weird," Elena said, and she heard the challenge in her own voice. "If you don't make it weird."
Axel lifted his head, turned it to look at her over his shoulder. His eyes were dark. Dangerous. "And if I do?"
The room went quiet.
Wilder looked between them, swallowed, and very deliberately stood up. "I'm going to get water." He was gone before either of them could respond, his footsteps quick on the floorboards.
The door to the kitchen swung shut.
Alone on the floor. Elena still kneeling beside him, marker in hand. Axel shirtless and covered in ink, the muscles of his back flexing as he pushed himself up onto his elbows.
"You're blushing," he said.
"I'm not."
"You are. Your face is red. I can see it from here."
She capped the marker. Set it down. Met his eyes. "Do you want me to finish the lesson or not?"
He held her gaze for a long moment, and then he rolled to his side, exposing his flank, the hip, the waistband of his sweatpants riding low. The muscles of his obliques were still labeled in her handwriting. The ink was starting to smear from his body heat.
"The glutes," he said, "are anatomical. You're a medical student. Draw your lines."
She could have said no. Could have stood up, called the lesson over, let the moment dissolve into breakfast and textbooks.
Instead, she uncapped the marker again.
"Roll onto your stomach," she said, and her voice was steady. "I need to see the origin of the gluteus maximus."
Wilder stood in the kitchen, the faucet running as he watched the water fill his glass. The apartment was quiet except for the hum of the old refrigerator and the faint sound of voices from the living room—Elena's steady, lecturing tone, Axel's low rumble in response. He'd gotten used to the rhythm of their study sessions over the past few weeks. Elena's patience, her way of breaking down complex systems until they made sense. The way she'd light up when he asked a good question.
But he hadn't gotten used to the way his brother looked at her.
Like she was a meal he was savoring. Like he was counting down the minutes until he could have her again.
Wilder took a long drink, letting the cool water settle in his chest. He liked Elena. Respected her. She was smart and kind and she didn't talk down to him even when he asked stupid questions. She was the best tutor he'd ever had, and he was grateful. But sometimes, watching Axel circle her like a wolf made him want to put a table between them.
The water glass was full. He turned off the faucet. Breathed. Then walked back into the living room.
The scene that greeted him made him stop in the doorway.
Elena was on the floor, cross-legged, the textbook open in her lap. Her cheeks were flushed—not the light pink of embarrassment, but a deep, spreading red that reached her ears and the collar of his hoodie. The hoodie. His hoodie, the one Axel had put her in last night. She was staring at the page like it held the secrets of the universe, her jaw tight, her free hand pressed flat against the floor as if she needed the anchor.
And Axel. Axel was lying on his stomach, his face buried in his folded arms, but the back of his neck was red. His ears were red. The muscles of his shoulders were tensed in a way that had nothing to do with anatomy.
Wilder looked at the marker lying on the floor beside Elena's knee. Looked at the unfinished lines on Axel's lower back, right above the waistband of his sweatpants. Looked at the gluteus area—untouched. Unlabeled.
He cleared his throat.
Elena's head snapped up. Her eyes were wide, too bright, and she blinked at him like she'd forgotten he existed.
"I'm not even gonna bother asking what happened," Wilder said, and he walked over to her, holding out the glass of water.
She took it. Her fingers brushed his. They were trembling. Just slightly.
"Thanks," she said, her voice smaller than usual. She drank, and he watched her throat move as she swallowed, watched the way her eyes closed for a second too long, like she was steadying herself.
Axel lifted his head. "Hey." His voice was rough, a growl. "Where's my drink? I'm the one being tortured here!"
Wilder glanced at him. "You have legs."
"I'm a human anatomy chart! I can't move!"
"You're a human anatomy chart who's been lying there for five minutes doing nothing."
"I was—" Axel stopped. His jaw worked. A muscle jumped in his cheek. "I was resting."
Elena made a sound. A small, choked sound that might have been a laugh if she'd let it finish.
Wilder looked at her. She looked at him. And something passed between them—a shared understanding, a mutual recognition of the absurdity of the man on the floor, covered in ink and indignation.
A slow smile spread across Wilder's lips.
"Shut it, human slave," he said.
Elena's eyes widened. Then her smile broke through, bright and sudden, and she said, in perfect unison with him, "Shut it, human slave."
They looked at each other. For a moment, the tension in the room shifted—from charged and heavy to light, almost giddy. Wilder felt a warmth spread through his chest. She got it. She understood.
Axel stared at them both, his head still lifted, his expression a mix of betrayal and disbelief. "You two are a cult," he said, and he let his head drop back onto his arms. "A cult. I'm dating a cult leader and her prophet."
"Prophet?" Wilder raised an eyebrow.
"You heard me." Axel's voice was muffled against the floorboards. "Converted. Brainwashed. Turned against your own flesh and blood."
Elena laughed. A real laugh, this time, the kind that came from her chest and made her shoulders shake. She set the water glass down and wiped the back of her hand across her mouth. "We're not a cult. We're a study group."
"With me as the teaching aid," Axel muttered.
"Voluntary teaching aid," Elena corrected.
"I was ambushed."
"You walked out of the bathroom shirtless at four in the morning."
"I was sleeping!"
"You stretched," Wilder said, and he couldn't keep the grin off his face. "You came out and stretched, and it was so dramatic I half-expected a spotlight."
Axel turned his head just enough to glare at his brother. "One day, baby brother. One day, you're going to have a girlfriend, and I'm going to walk in on you two, and I'm going to sit down and watch. See how you like it."
The threat hung in the air, heavier than either of them expected. Wilder felt his ears go hot. He looked away, at the textbook, at the inked lines on Axel's back, anywhere but at Elena.
She was staring at the floor. Her flush had deepened.
"Anyway," Wilder said, his voice too loud, "we should finish the diagram. We still need the glutes."
"No." Axel's voice was flat.
"Yes." Elena's voice was quiet, but firm. She picked up the marker again, capped and uncapped it in a nervous habit. "We're here to study. We have an exam in three days. We're going to finish the diagram."
Axel said nothing. But after a long, tense pause, he shifted his weight and rolled back onto his stomach, his arms folded under his head, his spine a long, tense line of muscle and ink.
Fine. The word was unspoken, but it filled the room.
Wilder sat down on the other side of Axel's legs, cross-legged, his back to the couch. He pulled the textbook closer and found the page on the gluteal region—gluteus maximus, medius, minimus. Origins and insertions. The anatomical landmarks he'd need to know for the exam.
Elena knelt beside Axel's hip, the marker in her hand. She didn't move for a long moment. Then she pressed her fingers to his lower back, just above the waistband of his sweatpants.
Axel's breath caught. Audible. Sharp.
"Relax your muscles," Elena said, and her voice was steady now, the teacher's voice, the one that carried the weight of memorized textbooks and study sessions. "I can't draw what I can't feel."
"You can't feel it if I'm tense?"
"No. The muscle fibers contract. The shape changes. I need the resting state to get the origin points right."
Wilder watched, his heart beating in his throat. He watched her fingers move, slow and deliberate, pressing into the meat of Axel's gluteus, tracing the curve where it connected to the ilium. She moved like she was reading braille, like she was mapping the landscape of his body through touch alone.
Axel's hands were curled into fists under his chin.
"The gluteus maximus," Elena said, and her voice was clinical, detached, "originates at the posterior gluteal line of the ilium, the sacrum, and the thoracolumbar fascia. It inserts at the gluteal tuberosity of the femur and the iliotibial tract."
She drew the line. A long, sweeping curve across the top of his glute, following the bone. The marker left a black line on his skin, stark against the pale flesh.
"The primary functions are hip extension and external rotation. When you stand up from a squat, this is the muscle you're using. When you climb stairs. When you—"
She stopped. Swallowed.
Wilder saw her eyes flick to Axel's face. Saw the way her hand had paused, the marker hovering over his skin.
"When you what?" Axel's voice was barely a whisper.
Elena didn't answer. She drew the next line, the gluteus medius, lower and smaller, and her hand was shaking.
Wilder wanted to leave. Wanted to disappear into the kitchen and not come back until they were done. But he was rooted to the floor, the textbook open in his lap, and he couldn't tear his eyes away from the scene in front of him.
His brother, shirtless and covered in ink, lying still as Elena's hands moved over him. His tutor, her face flushed, her voice cracking, pretending that this was just another anatomy lesson.
It wasn't. Neither of them was pretending.
"The gluteus minimus," Elena said, and her voice broke on the last syllable. She cleared her throat. "The gluteus minimus is the smallest of the three. It lies under the medius and assists in hip abduction and internal rotation."
She drew the line. Quick. Finished. And then she sat back on her heels, the marker held tightly in her hand, and she didn't look up.
"Done," she said.
The room was silent. The radiator clicked. Somewhere outside, a car passed, its headlights sweeping across the curtains.
Axel slowly pushed himself up onto his elbows. He looked down at his body, at the web of lines and labels that covered his torso, his arms, his legs. He looked like a living diagram, a work of art in black ink and muscle.
"So like.... Do I go to a museum now?" Axel asked, deadpanned, making Elena and Wilder BURST into laughter.
Elena doubled over, her hand pressed to her stomach, the marker still clutched in her fingers. Wilder wheezed, his shoulders shaking, his face red from the force of his laughter. The sound filled the room, broke the tension that had been winding through them like a coil, and for a moment, they were just three people laughing at the absurdity of a shirtless man covered in anatomical diagrams.
"Never thought I'd ever become lab equipment," Axel grumbled, watching his girlfriend and baby brother laugh their ass off on the floor. He shook his head, but there was the ghost of a smile at the corner of his mouth.
Elena tried to catch her breath. Wilder wheezed, his hand on his chest, his eyes watering.
"I'm gonna go get breakfast," Axel said, getting up and pulling a shirt over his head. The fabric swallowed the ink, covered the lines and labels, and in seconds, he was just a man in a t-shirt again. "Don't miss me too much."
The door clicked shut behind him.
The silence that followed was different. Softer. Wilder let out a breath and ran a hand through his messy hair, his green eyes finding Elena's. "He's never going to let us forget this."
"That's the point," Elena said, smiling. "We'll never forget it either."
She stood up, stretched, and winced as her body reminded her of the night before. The soreness had settled deep into her muscles, a pleasant ache that made her feel claimed. Wilder looked away quickly, his ears turning red, and she pretended not to notice.
They worked in comfortable silence for the next fifteen minutes. Elena gathered the markers, capped them, and placed them back in the case. Wilder stacked the textbooks, straightened the papers, and wiped the coffee table clean of the condensation rings left by their glasses. The living room slowly returned to its neutral state, the evidence of their study session erased.
When the room was clean, Elena sat down on the couch and patted the space beside her. Wilder hesitated, then sat down, his long legs stretched out in front of him. She turned to face him, her dark eyes soft, and reached out to pinch his cheeks.
"You're SOOO cuteeee.... Just like your brother," she said, her voice warm, teasing.
Wilder's face flushed. "Lenochka—"
The door swung open.
"Wow. I didn't know I looked like him." Axel's voice cut through the room, dry and sarcastic. He stood in the doorway, a paper bag in one hand, his eyebrows raised.
Both of them jumped. Wilder's hand flew to his chest. Elena's cheeks went red.
She recovered quickly, turning to face Axel with a smile that was equal parts sheepish and defiant. "I wasn't done," she said.
"By all means. Continue." Axel stepped inside, closed the door with his foot, and set the bag on the coffee table. The smell of fresh pastries and coffee filled the room.
Elena turned back to Wilder. She pointed at his face, tracing an invisible line from his temple to his jaw. "The light brown hair and the skin and nose. The only difference is the eyes."
"Eyes?" Axel and Wilder asked in unison, their voices overlapping.
"Yeah." Elena squeezed Wilder's cheeks again, making him grimace. "Yours are all bright and cute." She released him and glanced at Axel. "His is...."
"I'm the hotter one," Axel finished, settling onto the armchair across from them. He pulled a croissant from the bag and bit into it, the picture of unbothered confidence.
Wilder groaned. "I hate both of you."
"No you don't." Elena reached over and ruffled his hair. "When you get into my medical college, I'll introduce you to alllll the cute girls there."
"You're like my mom..." Wilder grumbled, but he was smiling. He couldn't help it. Elena's enthusiasm was infectious, her warmth impossible to resist.
"Your mom who's barely four years older than you."
"And dating my brother."
"The hottest brother," Axel added, finishing the croissant in two more bites.
Elena rolled her eyes, but the smile stayed on her face. She reached for the coffee container from the bag and wrapped her hands around the warm paper cup, letting the heat seep into her palms. She took a sip. Black, no sugar. Exactly how she liked it.
The three of them sat in comfortable silence for a moment, the morning light growing brighter through the curtains. The radiator clicked in the corner, and somewhere outside, a bird sang.
"We should eat," Elena said finally, pulling the bag closer. She found a second croissant and passed it to Wilder, who took it with a mumbled thanks. She pulled out a third for herself and bit into it, the flaky crust scattering across her lap.
Axel watched her from across the room, his hazel eyes tracing the line of her throat, the way her lips closed around the pastry. He didn't say anything. He didn't have to.
Wilder noticed. His ears turned red again, and he focused intently on his croissant, pretending he hadn't seen the look that passed between them.
Elena felt the weight of Axel's gaze like a touch. Her skin flushed, and she took another sip of coffee to cover her sudden self-consciousness. The bruise on her collarbone throbbed faintly, a reminder of where his mouth had been.
"So," Wilder said, his voice carefully neutral, "what's next on the syllabus?"
Elena blinked, forcing herself back into tutor mode. "Axial skeleton," she said. "The skull, vertebral column, and rib cage. It's about two-thirds of the total bones in the body."
"Great," Axel said, standing up. "I'm leaving."
"No you're not." Elena reached out and grabbed his wrist before he could take a step. Her fingers wrapped around his arm, and she tugged him back toward the couch. "You're the study aid now. You've been officially drafted."
Axel looked down at her hand, then up at her face. "I'm a human diagram now."
"The knowledgeable kind," Elena and Wilder said in unison, their voices flat, matter-of-fact.
Axel stared at them. "This is a cult."
"It's a study group." Elena released his wrist and picked up the anatomy textbook, flipping through the pages until she found the chapter on the axial skeleton. "And you're our visual aid. Now sit."
Axel didn't sit. He crossed his arms and looked down at her, his jaw tight, but there was no real resistance in his posture. "I just ate."
"That's fine. You can digest while we learn."
"Elena."
"Axel." She looked up at him, her dark eyes steady. "Sit."
It was a command, not a request. And she said it in the same voice she used when she was explaining the difference between the origin and insertion of a muscle—patient, clinical, and utterly authoritative.
Axel sat.
Wilder made a sound that was somewhere between a laugh and a cough. He covered it with his hand.
"Don't," Axel said, without looking at him. "Just don't."
Elena pulled the textbook onto her lap and opened it to the diagram of the skull. "The axial skeleton consists of 80 bones. The skull has 22—8 cranial and 14 facial. The vertebral column has 33 vertebrae, though some fuse in adulthood. The rib cage has 12 pairs of ribs and the sternum."
She paused, looking up at Axel. "You can lie down if you want. It might be easier to see where everything goes."
Axel stared at her. "You're going to draw on my head."
"No. I'm going to draw on your back again. And maybe your neck. But you can lie down if it's more comfortable."
He let out a long, slow breath. Then he stood up, walked over to the couch, and lay down on his stomach, his arms folded under his head. "This is the last time," he said. "I'm not doing this for the entire semester."
"We'll see," Elena said, and there was a smile in her voice.
She pulled his shirt up, exposing the skin of his lower back. The ink from the previous lesson was still there, though smudged in places. She traced the line of the gluteus maximus with her finger, feeling the muscle contract under her touch.
Axel's breath caught. Audible. Sharp.
Wilder stared at the floor, his hands clasped in his lap, his knuckles white.
"The vertebral column," Elena said, and her voice was steady, "is divided into five regions. Cervical. Thoracic. Lumbar. Sacral. Coccygeal." She pressed her fingers to the base of his neck. "Cervical. Seven vertebrae."
She drew a line down the center of his back, following the spine, counting under her breath as she went.
"Thoracic. Twelve." Her hand moved lower. "Lumbar. Five."
Her fingers stopped just above the waistband of his sweatpants. She could feel the heat of his skin through her palm, the steady rhythm of his breathing.
"Sacroiliac joint," she murmured, pressing into the dimples at the base of his spine. "The pelvis connects here."
Axel said nothing. But his hands, curled under his chin, tightened into fists.
Elena drew the lines. She labeled each region with the corresponding vertebra count. She pressed her palm flat against his sacrum and said, "The sacrum is a fusion of five vertebrae. The coccyx is four—sometimes three or five, depending on the individual."
Wilder was watching now. He couldn't help it. He watched her hands move across his brother's body with the same precision she used to draw on a whiteboard, clinical and detached. But he saw the way her fingers lingered, the way her breath caught when she pressed a little harder.
She was feeling him. Not through the textbook. Through her hands.
"The rib cage," Elena said, and her voice cracked. She cleared her throat. "The rib cage is made of 12 pairs of ribs. True ribs—the first seven—attach directly to the sternum. False ribs—eight through ten—attach via cartilage. Floating ribs—eleven and twelve—don't attach at all."
She traced the curve of his ribs, counting them with her fingers. "One. Two. Three."
Axel shivered.
Elena's hand paused. "Cold?"
"No."
"Tense?"
"No."
She pressed her palm flat against the center of his back, over the thoracic vertebrae. "What is it, then?"
The room went still. Even the radiator seemed to stop clicking.
Axel turned his head, just enough to look at her out of the corner of his eye. "You know what it is."
Elena held his gaze. Her hand stayed on his back, warm and steady.
Wilder didn't know where to look. He stared at the textbook, the diagram of the skull blurring in front of him. He could feel the tension between them like a physical weight, pressing down on his chest.
"I need you to focus," Elena said, her voice quiet but firm. "I need you to be a diagram."
"I'm a person."
"I know."
"You're touching me."
"I know."
"And you're pretending it doesn't mean anything."
Elena's breath caught. Her hand trembled on his back, and for a moment, she looked like she might break. Then she straightened her spine, lifted her chin, and said, "It means everything. But right now, it's a lesson."
Axel stared at her for a long, quiet moment. Then he closed his eyes, lowered his head back onto his arms, and said, "Fine. Finish the diagram."
Elena's hand started moving again, drawing the last ribs, labeling the sternum. She drew the clavicles and the scapulae, the bones that connected the axial skeleton to the appendicular. She marked each one, her voice steady even as her hands shook.
"The clavicle," she said, "is the most commonly broken bone in the human body. It connects the sternum to the shoulder blade."
She drew it. Long. Curving. Finished.
"The scapula," she said, "is the triangular bone at the back of the shoulder. It provides attachment points for seventeen muscles."
She didn't draw it. She couldn't. Her hand was shaking too hard.
She sat back on her heels and capped the marker. "Done," she said.
Wilder let out a breath he hadn't realized he was holding.
Axel didn't move. He stayed where he was, his face hidden in his arms, his body a living canvas of lines and labels.
Elena stood up. Her legs were unsteady, and she pressed a hand to the armchair to steady herself. "I need... water."
"I'll get it," Wilder said, jumping to his feet. He was gone before she could argue, disappearing into the kitchen, the door swinging shut behind him.
The room was quiet. Elena stood in the middle of it, her hands shaking, her heart pounding in her chest. She watched Axel's back rise and fall with each breath, the ink lines shifting with the movement of his skin.
"Elena."
His voice was soft. Rough. She turned to face him.
He was still lying down, but he had turned his head, and his hazel eyes met hers. "You didn't finish."
"What?"
"The diagram." His hand came up, and he tapped his own throat. "You didn't draw the hyoid bone."
She stared at him. The hyoid bone. A small, U-shaped bone in the neck that didn't articulate with any other bone. It was easy to forget, easy to skip.
He was testing her. Reminding her. Teaching her something she already knew.
She walked back to him, slow, deliberate. She knelt beside him and uncapped the marker.
"The hyoid bone," she said, her voice a whisper, "is located at the base of the tongue. It serves as an attachment point for the muscles of the tongue and the larynx."
She pressed her fingers to his throat, feeling the warm skin, the pulse beating beneath. He swallowed, and she felt the movement of the bone against her fingertips.
She drew it. Small. U-shaped. Perfect.
Then she sat back, capped the marker, and didn't move.
"Done," she said.