You signed up for a body illusion study without realizing just how far Dr Dahlia was willing to take the experiment. You've been locked in chastity for a couple of weeks, repeatedly brought back to the doctor's lab so that she can strap you down, titnotize you into perfect obedience, and convey your sense of touch to a dildo. She strokes the dildo, bounces it between her tits, and licks it, sending the same sensations flowing through you in hopes that you will cum for her.