Fuck him on the table and give him his medicine

"You can get off the floor now, Dad," you say nonchalantly, downing the last of the orange juice. Putting that bottle away, you grab a different one from the fridge and set it down on the kitchen table. The new bottle is tall, relatively thin, and full of a thick, peach-colored liquid. The label on the side reads "P.P. Formula 12, Extra Strength."

"Um... Didn't you want a turn?" Peter's new voice is much higher-pitched than his old one, although at the moment it's a little raspy from the **** his throat just suffered.

"Well yeah, but I'm not in the mood to roll around on the dirty floor."

"Hey, that's not very nice," Peter says, clambering to his feet. "I cleaned all the floors last night."

"Eh... You barely got through half the rooms before Michael and I got bored and started spit-roasting you," you reply, feeling your member twitch at the memory. You idly stroke it a few times while you watch Peter brush himself off and adjust his shorts. "Take those off and bend over the table, would you?"

Rolling his eyes, your father tugs the tiny garment past his wide thighs and lets it drop to the floor. Kicking it to one side, he leans over the kitchen table and spreads his legs. His pussy is clean-shaven, the spitting image of April's.

Feels the same too, you think as you step up behind him and ease your cock inside. Peter gasps under his breath, gripping the table as you fill him up. You can feel him pressing back against you, too, helping to work your shaft in just a little bit faster.

You grab a handful of his ass, kneading it as you slide fully inside. "Feeling a little ****, Dad?"

"I, uh... M-maybe," he replies sheepishly, glancing back over his shoulder. "I can't help it... Mike's dick got me all..." He clears his throat. "I can't help what that cocktail does to me."

"Oh, right! Thanks for reminding me." Without pulling out of your father, you lean over and grab the tall bottle... A mix of female hormones, growth stimulants, and aphrodisiacs. "Drink the rest of this."

"Wha--ALL of it? This is supposed to last another two weeks," he protests.

"I'm sorry, did your tits shrink, or am I still in charge?" There's no malice in your voice; you know that Peter will quickly come around to your point of view, but sometimes you like to mess with him. "Relax, it's safe. I read this thing on the internet about accelerated schedules and stuff. Go on!" You punctuate with a deep thrust.

"If you say so," he murmurs, opening the bottle and beginning to chug it down. He's in an awkward pose, trying to tip the bottle into his mouth with one hand while supporting his rocking, jiggling body with the other.

You ride him steadily while he drinks, losing yourself in the rhythm and the sheer mind-bending pleasure of the act. Before you know it he lowers the empty bottle, still swallowing the last of the smoothie-like concoction. "I'm finished, son. Oh, God, I think it's already... I'm gonna--aaAAH!"

Peter's whole body tenses up, and he inadvertently flings the bottle halfway across the room. "Fuck, fuuck FUCK," he shouts, pussy clenching around your cock. "Jesus, I can't--I--Oh, fuuuck..."

That's about all you can take. Before your father's orgasm has a chance to subside, you begin filling him up with your hot load. That sets him off again, and he gyrates slowly while mumbling more swear words than a middle-aged father should know.

As you pump out one last jet of cum, Peter looks back at you. "I... I need to taste it..." With that he pulls away from you, scrambling to turn around and plant his fat lips on your wet, sticky cockhead. "Oh God, I feel it inside me... I wanna drink it too... Fuuuck..."

There's fire in his eyes as he slurps greedily, alternating between sucking like a vacuum and running his tongue along your shaft. All the while his hand plunges between his legs, splattering his juices and your load onto the table. "Mmmph..."

"Okay, so maybe that was a _little _too much smoothie for one day," you say, grinning ear to ear while your father polishes your member. "Oh, fuck, I wonder what that's gonna do to your body?" It takes a moment for the realization to sink in. "...Shit. We're gonna have to give April a whole bottle as well."

Peter doesn't seem to be listening. He pulls away after a while, licking his lips and curling up on the table. He seems content just lying there and masturbating, so you decide to leave him be.

Pulling open the patio door, you step out into the backyard.