He comes back 2 days later (Visit 3 - Two Pills)

Mark shows up for his appointment like the last couple times, and is escorted into an room where he sits on the exam table. After a couple minutes of waiting, Jenny and Kendra enter the room wearing a white lab coat each, and shut the door behind them. Not wanting Mark to realize the shrinking properties of the pill and back out of the study, but also wanting to test how much they can shrink his penis, it is decided two or more girls will be used for further tests. One will be to distract him from seeing his penis, and the other will take care of the measuring and stimulation.

"Hey Mark" Jenny says, glancing down at her patient form, to make sure she gets his name right. "I hope you dont mind Kendra will be joining us again today."

"Thats fine by me" he replies.

"Great, now strip down" she says as reaches into her lab coat pocket and takes out a ring of keys, and begins inspecting on after the other. "Dylan... Jacob... Kevin... Mark, here it is."

Once Mark is finished stripping down, the girls have him lay down on the exam table. Jenny begins removing the chastity cage, while Kendra disracts him. The blonde pawg quickly unbuttons her labcoat and lets it drop it to the floor, revealing her naked body underneath, and walking towards the head side of the table.

Mark cant help but turn his head to stare and take in her body in all its glory: her massive tits, tight stomach, wide hips, thick thighs, an ass you can see from the front, and a cleanly shaven pussy. In the time is takes her to make the 5 steps to towards his face, the jiggle of her curves, gets Marks newly freed cock hard.

He can feel Jenny touching his dick and start the measuring, but he's too distracted by the naked curvy blonde now only inches away to watch Jenny. Kendra climbs up on the table, and straddles Mark's stomach facing him.

Jenny takes down in her notes that his cock orginally 5 1/4 inches, after the prior two rounds of pills is at a new natural of just about 4 1/4 inches. She grabs two pills and a bottle of water, and walks toward the head end of the exam table.

"We'll be seeing what effect a double dose has on you today..." She tells him as she holds out the pills and water bottle.

"You must really like Kendra, i didnt even have to do any work to get you hard. Maybe if this does gets you big enough shell let you have some real fun" Jenny continues as Mark in hopes that maybe this offer is for real, takes down his two pills.

"You could have the biggest dick in the world, but if you cum as quick as you did last time, its still no use..." Kendra starts " but tell ya what, once Jenny gets her measurement if you can last two minutes or her stroking and watching me, ill let you fuck my tits"

Jenny gets back to the other end of the table and watches as Marks cock grows, and once shes satisfied its at its max, she measures him at 8 1/2 inches, and then drips some saliva into her hand, before statrting a timer for 1 minute. "Ok 2 minutes, starting in 3...2...1... now." Jenny says as she begins stroking gently and lightly with one hand.

Kendra has her head turned, and is watching Jenny as she starts the timer and begins her slow gentle strokes.

"Well if she is going to go easy on you, im not." She tells Mark, and grabs each of his hands. She places one of his hands on each of her tits, she holds them in place and makes him squeeze in and out, in and out.

"They feel so nice dont they... Almost too good to be real ... but they are ..." Kendra says as she removes her hands from his, figuring he'll continue groping on his own, before asking him "you like those big tits dont you?"

"Mmhmmm" he sheepishly responds "they're so nice."

"Are they the biggest you've ever touched?" Kendra asks.

"Yes" he replies

"How many other girls have you let you play with their tits before?" She asks.

"A couple" Mark answers.

"Were they big enough to tit fuck?" She inquires and looks back at Jenny.

"No... they werent big..." Mark starts, before being interrupted by Jenny's update.

"That's 30 seconds" Jenny lets them know, as she drools some saliva onto his cock, before tightening up her grip and stroking at a medium pace with her right hand. She then uses her left hand to play with his balls.

Kendra turns her head back to face Mark. She grabs his hands and moves them from her tits, down to her ass cheeks.

"You only lasted 7 seconds between these ass cheeks." She tells him as she begins to jiggle her massive booty, before bringing her own hands back to her tits.

"If you actually get to fuck these big tits, i dont think youll even last that long..." Kendra says as she pushes her tits together before continuing "Just imagine these soft tits wrapped all around your dick, tightly squeezing over inch of you."

Kendra turns her head back to Jenny and nods. Jenny removes her left hand from his balls and spits into it, before bringing it up to stroke the base of his cock, and using her right hand to focus on the head with short but fast strokes.

"Just over a minute to go" Jenny says, as Mark lets out a moan from Jenny's increased attention, and Kendra's visual teasing of the titjob hes hoping to recieve.

"All you have to do is last one more minute, and you get to feel these squeezing and stroking that dick of yours" Kendra says and starts to lean foward, hanging her tits just inches from his face, and then grazing a nipple across his lips.

"But we both know you wont last, because even with your bigger dick, your still just a typical whiteboy who cant handle a body like this" she tells him, and lowers her body even more, placing her tits around his head. She sways her tits left to right a couple times, than lifts his head up and wraps her arm around him, nearly suffocating him in her cleavage.

Mark begins moaning into Kendra chests and convulsing, as Jenny grabs the sample cup, and collects as best she can the ropes of cum that start spurting out of his dick.

Jenny puts the semen sample aside, and gets up to walk over to Kendra now sitting upright, still on Marks chest, and they whisper back and forth to eachother. Kendra then inches her way down Marks body, until her bare pussy is now just a few inches away from his mouth.

"Are you interested in a second round of tests today?" Jenny asks him.