You would, but...

Daddy taught you that it's rude to talk with your mouth full.

Exercising your right as the older twin, you lean down and take your father's cock in your mouth, sucking it sweetly as your sister licks and teases his nipples. "Oh fuck..." Paul moans, "Your mouths are so hot, girls. That feels so good."

"You taste so good too, Daddy," you purr, switching places with your sister. "It's like his cock is on fire, isn't it, Caroll?" Her answer is a satisfied moan, while you smother your father's face with your breasts. His mouth almost burns you as he kisses and gnaws at your flesh while his hands strain uselessly against the ropes.

You and your sister trade places often, always making sure that your father's cock is never out of a mouth for longer than a second, while you wait for the pills to take full effect. Paul struggles against the ropes, tearing and burning his skin, trying to either free himself or to direct your actions.

The unbearable burning in your loins, and your father's screaming, tells you that the pills have done their job, but you and your sister decide to **** him a bit more. Caroll slides down to meet you and the two of you sandwich his cock between your breasts. Sliding up and down in the perfect sync that only twins have, you make your father go absolutely crazy with pleasure. "Ah shit! Ah fuck!" he cries, bucking his hips as far as he can. "Ah fuck, I can't stand it anymore girls! I want to fuck! I want to fuck one of you right now! I don't care who, just put my dick inside you!"