๐ฅ Bonus Chapter: Private Tutoring โ The Pop Quiz
An exclusive scene from Booked Solid by My Tutor โ too hot for Amazon.
The MCAT flashcards were a prop.
Ethan knew it. Cassian knew it. The entire apartment โ the two mugs, the three plants, the second pillow, the growing evidence of a life shared rather than solitary โ knew it. But the fiction was part of the foreplay, and theyโd both committed to the bit.
โThe rules are simple,โ Ethan said, settling onto the kitchen counter with the flashcard stack in his hand and a grin that would have gotten him expelled from any institution that still believed in decorum. โYou ask me questions. If I get the answer right, I get a point. If I get it wrong, you get a point.โ
โAnd the stakes?โ Cassian was leaning against the opposite counter, arms crossed, glasses on. Heโd come home from the lab twenty minutes ago and hadnโt changed yet โ still in his button-down with the sleeves pushed up, still ink-stained at the fingertips, still looking like a man who could ruin your GPA and your composure in the same sentence.
โFirst to five points gets to be in charge for the rest of the night. Full control. The other person does whatever theyโre told.โ
Cassianโs eyebrow rose. โYouโre proposing a competition for sexual dominance based on biochemistry knowledge.โ
โIโm proposing an incentive structure. You taught me that.โ
โI taught you enzyme kinetics.โ
โSame energy.โ
He uncrossed his arms. Took the flashcards from Ethanโs hand. Their fingers touched during the transfer and neither of them pretended not to notice.
โFirst question,โ Cassian said, flipping the top card. โName the three stop codons.โ
โUAA, UAG, UGA.โ
โCorrect. One-zero.โ
โToo easy. Harder.โ
Cassianโs eyes darkened. โCareful what you ask for.โ He flipped another card. โDescribe the mechanism by which aminoacyl-tRNA synthetase ensures fidelity during translation.โ
Ethan answered. Correctly. In detail. While sitting on the kitchen counter in Cassianโs henley and nothing else from the waist down except boxer briefs, because heโd decided that wardrobe was part of the incentive structure and Cassian hadnโt objected.
Two-zero.
Cassian set the flashcards down. โYouโre not playing fair.โ
โIโm playing to win. You taught me that too.โ
โI didnโt teach you to weaponize your thighs.โ
โThat was self-taught.โ
Cassian crossed the kitchen. Stood between Ethanโs knees. Picked up the next card with one hand and placed his other hand on Ethanโs bare thigh โ high, warm, his thumb tracing the inner seam of muscle.
โWhat enzyme catalyzes the committed step in glycolysis?โ
The thumb moved. Slow circle. Ethanโs breath shortened.
โPhosphofructokinase-1. PFK-1. Catalyzes the phosphorylation of fructose-6-phosphate to fructose-1,6-bisphosphate. Allosterically activated by AMP, inhibited by ATP and citrate.โ His voice was steady. Barely. โThree-zero.โ
Cassianโs hand slid higher. His fingers traced the elastic edge of Ethanโs boxer briefs, feather-light. He flipped the next card.
โDescribe the Henderson-Hasselbalch equation and its clinical application in arterial blood gas analysis.โ
His hand slipped under the fabric. Ethanโs abs clenched. His thighs tightened around Cassianโs hips.
โpH equals pKa plus log of conjugate base over acid,โ Ethan managed, his voice thinning. Cassianโs hand wrapped around him, warm and deliberate. โClinically itโs used to determine whether acidosis or alkalosis is respiratory or metabolic in โ fuck, Cass โ in origin.โ
โIs that your final answer?โ Cassian murmured against his ear, hand moving with slow, precise rhythm.
โFour-zero,โ Ethan breathed. โOne more and I win.โ
Cassian pulled back. Removed his hand. Set the flashcards aside entirely.
โLast question. No card. Iโm going off-script.โ
He stepped between Ethanโs legs. Put both hands on the counter, framing Ethanโs hips. Leaned in until their faces were inches apart.
โWhatโs the mechanism by which repeated paired stimulation of a neutral stimulus with an unconditioned stimulus produces a conditioned response?โ
โThatโs not biochemistry. Thatโs psychology.โ
โThe MCAT covers behavioral sciences. Answer the question.โ
โClassical conditioning. The neutral stimulus โ in this case, the word โgoodโ โ is repeatedly paired with an unconditioned stimulus โ your mouth, your hands, the sound of your voice when I get an answer right โ until the neutral stimulus alone produces the conditioned response.โ
โWhich is?โ
โI get hard every time someone says โgoodโ in an academic context and itโs ruining my life.โ
Cassian laughed. The real laugh. Then he leaned in and whispered, right against Ethanโs mouth: โGood.โ
Ethan grabbed the front of his shirt and pulled him in and kissed him so hard the flashcards scattered off the counter.
โFive-zero,โ Ethan said against his mouth. โI win. Youโre mine tonight.โ
โIโm yours every night.โ
โTonight youโre mine specifically.โ
He pushed Cassian backward. Through the kitchen, down the hall, into the bedroom that was theirs now โ two pillows, three plants, a nightstand where wire-rimmed glasses lived beside a water glass.
Ethan pulled Cassianโs shirt open. Buttons, not torn โ theyโd moved past the frantic stage into something more deliberate. He pushed the shirt off Cassianโs shoulders, traced the scar on his wrist, kissed the hollow of his throat.
โLie down,โ Ethan said.
Cassian lay down. On his back. Looking up at Ethan with gray eyes that held no mask, no composure, no clinical distance. Just trust and want and the quiet willingness of a man who had learned to let someone take care of him.
Ethan straddled him. Pulled the henley over his own head. Pressed his hands flat on Cassianโs chest.
โYou know what I love about you?โ Ethan said, leaning down, mouth against Cassianโs ear.
โMy allosteric regulation research?โ
โYour everything.โ He kissed below Cassianโs ear. His jaw. The corner of his mouth. โYour stupid glasses. Your ink-stained fingers. The way you cook pasta like itโs a lab protocol. The way you say my name.โ
โEthan.โ
โJust like that.โ
He kissed down Cassianโs body. Slowly. Taking his time because heโd won the game and the prize was this: the chance to worship this man without a clock or a locked door or a single reason to stop.
He undid Cassianโs belt. Pulled his pants down. Took him in his mouth with focused attention, and Cassianโs hand went to his hair โ not guiding, not directing, just holding on โ and the sound he made was Ethanโs name, said like a prayer.
Ethan brought him close. Then stopped. Climbed up his body. Pressed their foreheads together.
โI want you inside me,โ Ethan said.
Cassianโs hands framed his face. โAlways.โ
They moved together. No performance. No power dynamic. No arrangement or compensation. Just the rhythm theyโd built โ their rhythm, specific and practiced and still capable of surprise โ and the sounds they made were honest and unhurried and full.
Cassian pressed into him slowly, his hands on Ethanโs hips, his eyes on Ethanโs face. Theyโd learned each otherโs bodies with the thoroughness of scientists and the tenderness of people in love, and the combination was devastating every time.
Ethan rode him. Controlled the pace. Set the rhythm. And Cassian let him, watching from below with those gray eyes that had seen him failing and drowning and fighting and succeeding and had never, not once, looked away.
โYouโre everything,โ Cassian said. The words heโd first spoken in this bed, months ago. He said them now with the easy certainty of a man who had run the experiment enough times to trust the result. โYouโre everything, Ethan.โ
โSay it again.โ
โYouโre everything.โ
โAgain.โ
โYouโreโโ
He came. Mid-word, mid-sentence, mid-declaration. Ethan followed, with Cassianโs hand on him and Cassianโs voice in his ears and the absolute, bone-deep certainty that he was exactly where he was supposed to be.
After. Tangled. Breathing. The plant on the nightstand casting a small green shadow in the lamplight.
โI got every question right,โ Ethan said.
โYou did.โ
โIโm going to ace the MCAT.โ
โI know.โ
โAnd then medical school.โ
โOr marine biology.โ
Ethan lifted his head from Cassianโs chest. โYou remembered that?โ
โI remember everything about you. The whales. The blue whale poster. The ocean you dreamed about before someone told you it wasnโt practical.โ
โYou think I should study the ocean?โ
โI think you should study whatever makes you look the way you look when you talk about deep-sea biology documentaries at 11 PM on a Tuesday.โ
Ethan pressed his face into Cassianโs chest and felt the laugh before he heard it โ the vibration, the warmth, the sound of a man who had learned to be happy and was still surprised by it every time.
โI love you,โ Ethan said.
โI love you too.โ No rehearsal. No precision. Just the truth, easy and warm, the simplest mechanism in the world.
On the windowsill, three small plants reached toward the light.
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