Candi's in charge for now

The part of you that is still Alan desperately tries to exert some self-control, but Candi's preprogrammed drives and instincts prove too strong.

You swallow his cock once more, taking it deep into your throat until your lips kiss the base of his shaft. Soft gagging noises escape around the thrusting dick as he fucks your face. Not because you are **** (you don’t seem to have a gag reflex now or a need to breath) but just because you know it will make Daddy more excited.

Your hands cling to his bony hips while his fingers tangle in your long blonde hair.

"Oh fuck yes," he groans, "perfect. You're the perfect set of holes. Oh, the things I will do to you..."

He shudders and something hot and salty floods your mouth. Your eyes roll back as an orgasmic surge of euphoria thunders through you. Artificial reward paths triggering as you fulfil your purpose as his cum receptacle.

When he releases your head you flop back dazed by the strength of your reaction. Slowly, the warm glow of satisfaction fades, replaced by horror and disgust. Horror at what the Professor has done to you and disgust at yourself for wanting him to do it again...