Zack's footsteps are heavier than necessary as they ascend, leaving Chloe's flirtatious smile and Haley's territorial glare behind them. Once inside Anna's bedroom with the door shut securely behind them, Zack backs her up against the wall. "Fucking hell," he mutters. His hands frame her face, his thumbs brushing roughly along her cheekbones as he stares down at her with intense frustration. "Your sister and her friends are literally making out on the couch while your dad is probably in the kitchen making dinner like nothing is wrong." His voice is a low growl, filled with a mix of anger and possessiveness. "And that Chloe was checking me out like she wanted to replace you. I don't like it, Anna." He presses his forehead against hers, his breathing uneven. "And now I have to sit in here and pretend to give a shit about calculus when all I can think about is bending you over that desk and fucking you until you scream my name so loud everyone downstairs knows who you belong to." His hips push forward instinctively, grinding against her through their clothes.
Anna looks at him with an amused gaze. "I kind of like seeing you squire," she said with a low seductive voice. Zack's green eyes darken instantly at her teasing tone, a dangerous grin spreading across his face. "Oh really? You like seeing me squirm?" His hands slid from her face down to her hips, gripping possessively as he lifts her easily against the wall. The movement is sudden and deliberate, pinning her in place with his body. "You are plying a very dangerous game right now, Anna," he warns, his voice dropping to a husky whisper. "Because if you keep talking to me like that, I am going to forget all about you dad downstairs in the kitchen and your sister and her friend on the couch." He lowers his head to nip at her earlobe, his teeth grazing the sensitive skin deliberately. "I will have you bend over the desk in about thirty seconds flat if you don't start acting like a good little student." His other hand finds the hem of her white buttoned up shirt, fingers slipping underneath to tease along the waistband of her black mini skirt.
"A good little student?" Anna repeats. "Oh, no. I am the teacher here, remember and if you don't get to studying you won't get a reward," she says playfully. Zack's green eyes flash with a mix of surprise and arousal at her bold claim. The corner of his mouth twitches into a smirk as he processes her words, his grip on her hips tightening possessively. "Teacher, huh?" he murmurs, his voice laced with amusement and challenge. "I like the sound of that, but don't think for a second I am going to make it easy for you." He sets her down gently but does not step back, keeping her pinned against the wall with his body. His hands move from her hips to frame her waist, thumbs pressing into the soft skin just above her black mini skirt. "Alright, teacher. What is the first lesson on your syllabus? Because I have a feeling it involves a lot more hands-on experience than calculus equations."
"If you can do the first part of the assignment, you will get more than an A plus," Anna says softly, her hands cupping his cheek. Zack's breath catches at her touch, his green eyes fluttering closed briefly as he savors the feeling of her soft hand on his face. When he opens his eyes again, there is a raw intensity burning in his gaze that makes the air between them crackle with electricity. "The first part of the assignment," he repeats slowly, his voice thick with anticipation. "Let me guess- it involves getting rid of these clothes and showing you just how well I listen to my teacher." His one hands slide from her waist to the bark blue jersey she is wearing, and he gently slides it off her shoulders, so it lands on the floor. Then his hands move to the buttons of her white shirt, unbuttoning them slowly. "Tell me what else is on the syllabus," he demands husky, leaning in to press hot open-mouthed kisses along her collarbone. "Because I am read to ace every single fucking assignment you give me tonight."
"No, the mathematics assignment, silly. But if you do the first part properly, maybe I will put on a little show for you, strip off the rest of these restrictive clothes," Anna said seductively. Zack's movements freeze mid-kiss, his lips hovering against her collarbone as he processes her conditions. A slow, predatory grin spreads across his face, and he pulls back just enough to look into her eyes with renewed determination. "A strip show? Fuck yes, I am in," he says without hesitation, his voice dripping with excitement. "You drive the hardest bargains, you know that?" He steps back reluctantly, creating space between their bodies even though every instinct is screaming at him to ignore the stupid math assignment entirely. He grabs his backpack and takes out the assignment and his mathematics textbook. He grabs a notebook from the desk with exaggerated force. He sits down on the bed and pulls out the assignment and looks at the first question. His competitive nature kicks in fully now– if there is a prize involved, especially one starring Anna stripping just for him, he is suddenly motivated like never before.
Anna's shirt is halfway unbuttoned. She grabs her purple backpack and goes to sit on the bed a distance away from Zack. She takes out a physics assignment she had been working on and her textbook. An hour passes. "Done," Zack says triumphantly and hands Anna the completed assignment. "Alright, let me check it," she says seriously and reads through it. Zack watches nervously as she reads through his assignment. His usual confidence faltering slightly under her critical gaze. He leans forward anxiously, pointing at each question on his paper as she reviews his work. "Okay, first question– see how I solved for x using quadratic formula? I totally nailed that part," he says enthusiastically, tracing the calculations with his finger. "And look at this derivative problem– I remember to distribute the negative sign correctly this time." His knee bounced restlessly as she continued reading without commenting. Every time se pauses to think or recheck one of his calculations, his anxiety grows visible in the way he fidgets with the pen between her fingers. "Please tell me I did not mess up the chain rule again," he pleads quietly, leaning closer to read her notes over her shoulder. "Because if I did, you are going to make me wait forever for that striptease."