First rule of Gym class

Andrew was watching the girls doing laps in the gym. He'd been teaching at this school for years and there had been a consistent problem thought every single one of them. "Pick up the feet girls." This was an all girls school. Which made it a hunting ground for every fresh dyke looking to 'experiment'. Fuck most of the female teachers had at least one student hidden under their desk during a class.

"Sir are we done yet?" Kate asked. She'd been hanging behind the rest of the girls, watching as their butt bounced in their gym clothes.

Andrew could tell it was making the other girls uncomfortable, he could also tell when a dyke was about the strike and 'convert' a straight girl. Saw it all the time at this school. "Alright hit the showers, Kate wait there." He dismissed all the other students who looked thankful.

As they all left to the changing room Kate pouted and looked at him. "What is it?" She asked, upset her planned shower assault was getting delayed.

Andrew waited until all the other students were out of the gym. Giving some general advice on her running form and ways to improve her stamina, he is a teacher after all. When the students were gone he got serious. "Kate do you know my one rule?"

She looked at him with a puzzled expression. "No." She answered.

"It's simple." Andrew put a hand companionable on her shoulder. "Dykes don't get a cunt to lick in my class if they don't prove their dykes."

"WHAT!" Her shout was followed by an attempt to get out from under his grasp, but that wasn't going to happen.

"Easy, easy, just listen Kate. Alright." He soothed. He'd done this often enough to know how to settle the wanna-be lesbo down. "All the other girls just spent the entire class with you staring at their ass, they're all uncomfortable," Kate opened her mouth to object, "yes they are, how would you feel if I stared at your ass the whole class!" Andrew's question made her blush and she shut her mouth. "Now, if you go into the showers and try pushing some girls head between your thighs either she's going to scream or someone else it and I'll have to get involved. However, if you can prove you're actually gay, and not just horny as fuck and desperate for some physical contact. Anything that happens in the shower will stay between me, you and any willing girl you find." He put some emphasis on the willing part. Wouldn't be the first time the carpet muncher he tested felt like she had to prove she was gay and totally not attracted to him by grabbing the last girl to leave and forcing them to try to make her cum like he had made her.

Kate mulled over his words. Andrew watched on her face as she had the same thought process of every lesbo student. I'm gay, but he's offering to let me fuck someone in the locker room and not get in trouble for it, if all I need to do it prove I'm gay this'll be easy. He could tell she reached that conclusion by the little smirk that always showed up. "How do I prove it?" She asked.

"Easy. If you can resist cumming for ten minutes, I'll know you're gay. But in that ten minutes you have to do whatever I say. Afterwards, I'll make sure that you have some time alone with Jessica in the showers." That was the final strike, Jessica had been the one Kate ogled the most but he knew she was straight becasue Jessica had and always does, spend the class checking him out.

Kate eyes widened as she heard the deal but the moment he said Jessica her agreement was already guaranteed. "Deal!" Nothing like dangling some straight pussy in front of a dyke to make her realise how much she actually loves cock.

With his hand on her shoulder he can easily pull her shirt off over her head, exposing her fat tits. "Remember ten minutes." He reminded her as pinch her nipples and pointed her towards the big digital clock on the wall. "Oh and if you fail." He moved behind her and pressed his rock hard cock against her ass, even through his pants he could feel it push between her cheek through her skirt. He whispered into her ear, "You'll be my willing girl." He could feel her tense a little as he pinched her nipples, tugging them and making a gasp escape from her lips.

Kissing her neck as he toyed with her chest he waited until he felt those perky little nubs harden. She breathed through her teeth to try and cover up her moaning. Andrew smirked as he ran a hand down her stomach and lifted up her skirt, feeling her panties and the dampness beneath them.

"You want to do this to Jessica?" Andrew asked as he started gently kneading her clit through her panties. "To hold her from behind, pinch her slutty nipples while she moans taste her skin on your lips as she gets turned on. Feel how wet she is while for you." He moves his hand under her panties and touches her clit with the tip of his middle finger. "Listen to her as she begs you to let her cum."

"Not fair." Kate moans as he keeps teasing her clit. She was panting now, clearly desperate to cum from only this.

"You're right, we both know you'd never make her cum. She likes men, men with their big fingers." he slid his middle finger down her slit and buried up to the first knuckle inside her. Her hand moved up to grab at the back of his head, using it to support herself so she didn't fall to the fall. "Our strong grip." He pinched her nipple roughly as he pumped his finger in and out of her. "My thick cock." He push against her so she can feel her cock between her ass cheeks even more than she had been. "I'll be inside you soon."

"N-no you won't." Kate tried to deny as she tried to deny her panting.

"You think you'll last and six minutes." Andrew asked, it hadn't even been three yet but messing with her sense of time was a good thing. Making her think she can outlast only to reveal she's still got minutes left always broke through a stubborn dykes resolve.

"Y-yes, fuck." Kate moaned as he added another finger inside her. Pumping them in and out he went back to talking about Jessica, mention her ass as she ran around the gym, her tits as she did jumping jacks. He asked her how she'd think Jessica would taste, if she'd be happy to suck on Kate's pussy or if she'd act like she wasn't into it so Kate could hold her head between her legs, watching her eyes get big as Kate grinded her cunt on her face. How they'd flutter as Kate came on her face.

"Are you going to cum for a man?" He asked as he sped up his fingers.

"N-no." She said but her constant heavy breathing was an easy proof of that lie. "Only h-have one minute left." She tensed her thighs to try and resist the finger fucking.

"Yes you are, you're a dyke who is going to cum from a mans fingers, it wasn't even hard." He left her tit free to grab her chin and point it at the clock. "You've still got three minutes."

As soon as he said that he felt her resistant abandon her. "FUCK!" She shouted as her legs quivered, cunt clenching his fingers as she came like ever single wannabe dyke did.

He let her ride out her orgasm then pulled her skirt and panties down. "You lose, now you're going to make me cum ex-dyke Kate."

She didn't resist, cumming that hard from a guy, something that went entirely against her understanding of herself broke her, just like it always did. She'd just let him use her now. Her butt his the floor as he walked around to her front, freeing his cock and pushing it past her lips. He grabbed her head and tilting it back, making her look at him as he fucked her face. He didn't have time to fuck her cunt but nothing really corrected a dyke quite like making them swallow their first load.

When he came he forced him into her throat. Pumping her stomach full of his load. Pulling her off when he was finished he said, "good girl, but you need more proof don't you." He nodded her head for her. "Next class I'll make sure you and Jessica get some alone time. When you fail to make her cum I'll show you that all women, pretend dykes included, need a man to make them cum." He picked her up from the floor, gave her a spank and sent her to the showers.