He does. (Pegging)

Straddling his hips, Caroll distracts your father by grinding hers against his hard cock, while you put on the strap-on that you hid under his bed when Caroll dosed his dinner. Securing it tight, you pop up from behind the foot board. "Look what I've got, Daddy!" You say, wiggling your hips, making the bright pink dildo shake in the air. Caroll climbs off him and readjusts his ankle bindings, spreading his legs wide and upwards, exposing his untouched brown star.

Paul's face drains of color and you're sure that his cock would have deflated instantly if it were not for that little blue pill. "Alice, Alice, honey, sweetie, wha, wha, what, what are you planning on doing with that?"

"What you wanted to do, Daddy," you smile, coating the dildo in your spit while Caroll puts a generous amount of lube onto and into his asshole. "I'm going to fuck you."

"Haha... Joke's gone far enough girls, you can untie me now," he laughs, playing that card. Seeing that you two are serious, he starts thrashing wildly about, but with his legs up, he's got no leverage to break the bindings. "Caroll, Caroll, please, honey. Stop your sister and let me go." She's not listening to him, instead she's helping line you up, as you're learning how to move around with a stick hanging off the front of your hips.

"Okay, Daddy. Are you ready?" You ask, poking his asshole with the tip of your dildo. Paul shakes his head violently at you, but you just smile and thrust forwards.

"WHOA HELLO!" he shouts, his eyes bulging out of their sockets. You share a laugh with your sister as his face contorts every time your hips meet his balls. Single syllables come out of his mouth until they finally become words. "Ow. Ow. Ow. Ow. That, that, that, that's, ow. That's ow. That's weird, that's very weird."

"Let's make it not weird for you then, Daddy," you say.