She grinned evilly and pulled out a potion she had been saving for just such an occasion, downing the whole elixir in a single swallow. Moments after she took her 'medicine,' a snake-like object works its way to your belly button and latches on, pinching softly until it merges with your skin.
"Mmmm, I'm not EVER lettin' you go! You're gonna be my baby for the rest of our lives!" She caressed over your form again and again, basking in the glorious sensation of eternal pregnancy. You would more than likely never see the light of day again, but it could be a lot worse, you could have just been digested and never heard from again. You sigh a bit and wriggle every now and again to get comfortable.
"This isn't what I bargined for when I applied here."
"Lots of people get something they didn't bargin for, just relax sweetheart, I'll take REEEAL good care of you." She grinned and continued on about her day with you bouncing about in her womb. The belly did not hinder her at all, in fact, it seemed to make her more popular. Moans of delight echoed around you rather frequently as she enjoyed the sexual freedom the school presented, which sometimes resulted in you getting sprayed with warm, sticky, creamy goo from the other side of that tight pucker. Might as well enjoy it...you're not getting out...ever.