***The characters referenced in this story are Sixth-Formers, aged 18, or they are teachers. No character is any younger than 18***
On Monday, he does nothing. On Tuesday, nothing.
On Wednesday...I have problems.
Try as I might, masturbating just isn't the same. Even with all those sordid memories, playing with my penis just doesn't cut it. The pleasure's off, the sensation is inferior, the feeling of it subpar. It's worrying by Monday, dangerous on Tuesday, terrifying by Wednesday morning.
Terrifying, because Kyln might have broken me. Might have ruined sexual release for me.
Just looking at him, being near him and smelling him, arouses me. I'm not gay, I'm not attracted to a man, let alone a beast like Kyln is, but I'm forced to think of the least sexual things in the world, must constantly readjust myself in his presence, and need to keep far and away from the centaur coach.
It's so bad that by the end of the lesson on Wednesday I'm left awkwardly masturbating in the shower wishing, praying, that I'll be able to ejaculate and rid myself of this annoying boner that's plagued me all day.
I don't hear the door go, and only hear his hoofs a fraction of a second before I see him. Coach Kyln, tall and muscular, hairy and wild, is stood in the shower entrance grinning lustily at me. He snorts, throws his head back and chuckles loudly, filling the changing room with mirthful mockery.
'Thinking about me, Greyson?' he says, trotting into the large shower room, a rectangle of tiles and equidistant shower nozzles. 'Friday was good, huh?'
Paralysed as I am I watch him go past. He sets himself beneath a wall shower, letting the water soak through his thick salt-and-pepper locks and wet the coarse flow of his beard. 'Well, sissy? Anything to say for yourself? You know it's against school rules to masturbate.'
Coach Kyln positions himself in such a way as to have his backside facing me, puffy black ring of his arsehole visible beneath his long tail when it flicks from side to side. My gaze betrays me as settle upon the great hanging sack between his rear legs, that set of four massive balls, huge and sagging, glossy with sweat. Leathery brown skin, no fur.
'I...uh, I wasn't, Coach.'
He snorts. 'No need to be coy, Greyson. We're pretty familiar now, aren't we? Shit, bitch, I fucked you so hard you fell unconscious! Had to haul your cum-filled arse in here myself.'
'So what, you're going to blackmail me now?'
The Coach gives me a look of ill-humour. 'Blackmail? Gods no, slut. You think I care if you wank in the shower? Pfft.' He runs both hands through his long grey-streaked black hair, straining it, pulling out the knots, the sweat of the day washing away. 'I don't do blackmail. Weaklings do that. The strong take what we want. The strong receive what we deserve.'
He shifts, the cords of muscle beneath his fine coat flexing, momentarily obvious. The motion has his balls shudder and sway, a Newton's cradle effect, wobbling side to side and springing about in their taut leathery sack. I realise that I'm staring so I glance away, blushing harder, feeling nervous and ashamed. What's wrong with me?
Kyln obviously notices. 'Makes sense you'd stare at them,' he says. 'Kinda got a rapport, you and those testicles. After all, one produces my load, the other receives it.'
My mind races, flashing back to Friday, to the things I said and thought. I called this beast daddy, didn't I? I craved the sensation of his flesh inside of me, desired a pleasure only he could bestow, and was willing to do just about anything to perpetuate it. This stallion centaur -- my coach -- absolutely ravaged me, fucked me to pieces. And, as he says, filled me with one of his immense ejaculations.
'What I said--'
'Doesn't matter, Greyson. You were honest, on Friday. You knew your place and were rewarded for it.' He shrugs his powerful shoulders. 'Now you're playing it cool, but you were honest to me then. I know how you think, feel, need.'
I twist my mouth. 'If anyone were to find out--'
'I'd be sent back to Wildenarth, sissy. You think I want what I did to become common knowledge?'
'You raped me. It was rape.'
Kyln nods. 'Yep, Greyson. It was rape. Twice over. You being my student, you not consenting. Not really consenting, anyway. Not according to the' -- he makes air quotes -- '"high morals" of you humans and this world of yours.' The Coach turns to me with just his torso, a proud grin on his strong mouth. 'You loved it, slut.'
I...I did. I really, honestly, truly did. I loved being fucked by another man, by a bestial centaur stallion of a man. I'm straight, I say to myself. I'm not gay, I say to myself. But how do I square this circle? How could I enjoy gay sex -- the gayest, being the receiver, being the girl -- while maintaining these ideas about myself?
'I'm not gay.'
He rolls his eyes. 'Maybe, maybe not. Does it matter? I'm not looking to wine and dine you, Greyson. Just looking to drain my balls.' Kyln turns away again, wetting the furry hairs of his broad, sculpted chest. 'Our little coupling drained yours, I bet. You wanna experience that again, don't you, sissy?'
I do. I hate myself for it, but he's right. I do. I've never cum so hard, never experienced anything quite like it. Being ridden, being mounted, by the centaur stallion coach was something else.
'I won't tell,' I say while blushing, quivering. Instinctually I turn my back to him, put my hands against the tiles, assuming some kind of presentation pose. 'It's our secret, Coach. Just...do what you want.'
The Coach chuckles. 'Can't even say in plain English what you're after, huh?' There's a clack of hoofs on tiles as he turns about and rushes at me. Coach Kyln rears up on his powerful hind legs and I chew on my lip excited, eyes wide, ready...but he just presses his forelegs against the wall above me and holds steady, a great and terrible equid beast looming threateningly. 'Cute how you tremble. Why don't you guide me in?'
'I...uh...'
He snorts, reaches down, and grabs hold of my throat. 'Look, slut, do you have any idea how readily I get laid? How filthy your species are in the throes of heat, in my presence?' The Coach easily presses me forwards, pushing one of my cheeks against the wall, and tilting my head to look up at his brutish grin. 'The fuck do I get out of some dishonest little sissy who just wants to sit there and take it, huh? You want yourself a girl who just goes limp, bitch? Are you that fucking dull?'
I wouldn't, no. Any potential vision of a sexy girl, in bed with me, has a lot more to her than just laying back and taking it. Much as I hate the realisation, it's an honest one. I'm so nervous about this, so embarrassed about it, that I'm trying to avoid it entirely. If I'm beneath Kyln, if he's doing all of it...it's like I'm just being pleasured. Easy to pretend.
'What...what should I do?'