Jen tried to scream, but she couldn't. Where her mouth had been, she had an asshole. "Have fun," sneered Kyle.
Jen's left hand goes up to confirm what she has already realized. but when she does so she regrets it because as soon as a finger touches the outside of her facial anus the urge to masturbate takes over. Without any control over it first one, then two digits methodically slip in and out of her oral rectum. At the same time her pubic hand matches the rhythm, sending her into new bouts of ecstasy. Without any way to moan in pleasure anymore, her body shudders from the massive orgasm.
"Nice show" jests Kyle as he smirks at her. It seems he was watching the whole time and if you judge by the bulge in his pants, he quite enjoyed the spectacle. "But that was just a preview of what's gonna happen in the next few minutes at lunch. Since you don't have a mouth, you gain all your nutrition from cum in any of your three orifices. I'm sure many of your classmates would be happy to feed you and you are very hungry.
And right at that moment she realized she was quite famished