A staggering advancement.

"Anyway... Right!!" Candace says, pulling her eyes away from my crotch. "You have to see this." And with Piya's snap back into focus Dr Candace Xi begins laying out folders over a tabletop opening them up. I watch as the buxom Chinese medical professional walked across the view of the couch, her curves unable to be hidden underneath a pair of pink scrubs. Her perfectly, meticulously sculpted breasts that she takes so much pride in leading her as she bends over to arrange the relevant information out for Piya's benefit.

Piya and I both get up to come across the living room and look at what Candace is showing but pretty quickly I have to concede it is well out of my depth.

I can see that its two forms that look very similar, rows and rows of figures and a line graph. It's clear Candace has circled different figures on corresponding points on the two print-outs. I have no idea what they mean but Piya's gorgeous brown eyes light up and go wide at looking at them for only a minute.

They talk for a moment about proteins and markers in the different samples. I chime in asking about if proteins are like the ones in my post work out supplements and ask, "what is it we're looking at here?"

The two beautiful science-minded women with me both give me a polite nod, acknowledging I spoke before not wasting any time explaining how what I was saying was completely wrong.

"The numbers are crazy high," Piya says looking over the papers in front of her again and again.

"Right, and look at everything else, given genetic similarities, is the same. That opens the door for…," Candace says, coming around to look at the papers over Piya's shoulder.

"Transfusions... hormone syncopation... I mean this could be it," Piya mutters softly. "My little sister might be the key to all of this..."

"Exactly," Candace smiles

Piya holding the blanket loosely around her waist with one hand, barely covering up her completely naked bottom half, her pubic mound partially visible with the way the fabric has been collected, me with a raging erection still holding steady from moments before Candace came charging in.

"Wow, you two are in a state!" Candace says. "I almost feel bad for interrupting. Why don't you come sit back down on the couch before you faint or get a nose bleed or that thing of yours takes an eye out?" Dr Xi teases me before leading me back to the couch. Her eyes never leave my cock as she sits down next to me.

Piya is now writing things down like crazy on top of Candace's markings. She completely loses interest in holding the blanket around her waist and it falls to the floor around her ankles as she bends over to write her thoughts down as she says them out loud to Candace.

I watch as I get a peek of my girlfriend's glistening pussy lips and her long legs and ass. I can feel my cock throbbing and almost immediately I can feel Candace's hand on my shaft, giving it a firm squeeze and slowly sliding up the length of it. Coaxing me to take off my shorts, I’m more than happy to oblige.

"We have to start testing right away."

"Of course," Candace acknowledges as her other hand slips into the waist of her pink scrubs, I watch as her hand tents the fabric up and I imagine her gifted fingers pressing against her clit. "But you know this is miles away from above board," Candace warns through a moan that forces her to squeeze my cock harder.

"Are you saying I shouldn't do it?" Piya asks before turning around and looking at the two of us on the couch. She doesn’t object verbally but Piya does leave the table and comes over to me on the couch, swinging one leg over mine as she lowers her pussy down, pressing against my cock until I feel myself sliding into her wet hot pussy.

Candace releases her grip on my cock, the back of her hand brushing Piya's clit before moving to her own body and pushing up her Scrubs top, exposing her perfectly constructed breasts as she continues to finger herself. "Of course not, for one I think it'll work. Two, ever since Sydney every single one of the employers you didn't choose to work with are going to be trying to figure this out, how many was that again?"

"Sixxx---sixteen," Piya answers through a moan as she works her body up and down my cock.

"At least sixteen companies are going to figure out, steal your momentum, beat you to market. So, you cannot waste time," Candace says breathlessly as I watch her squeezing her breasts. "I was just saying you're going to have to be clandestine about it. And there are concerns about testing on yourself. That all said, if this works you've got a huge leg up on everyone else."

Piya lets out a guttural moan as she grips my shoulders and really rolls her thighs deeply. "Most importantly, if this works it'll get me pregnant. FUCK!"

The realization of what the two of them were talking about hits me like a tonne of bricks and I'm left speechless all I can do in response is to roll my hips harder to meet my writhing brilliant girlfriend.

Moments go by without any of us saying anything that sounds like a real word until Candace whimpers in desperation, "ever since the surgery I can’t cum without having my nipples pinched and pulled." She pulls her breast out of the cup of her bra and begins to mover her hand over to her own brown nipple only to have Piya grab her friend’s wrist. Holding it so Candace can only just barely not reach her nipple.

I keep pumping up into Piya as she starts teasing Candace's Nipple, circling it, brushing against it lightly as Candace is fingering herself desperately.

Feeling Piya's pussy getting warmer and warmer the longer she goes, I know she's getting off on teasing Dr Xi until Piya lets out a loud guttural howl and I watch her fingers snap shut on Candace's brown nipple and twist causing her doctor-friend to convulse and throw herself into the couch as she screams.

They both collapse and take moments to gather themselves. Piya is the first to speak as she pulls herself off my chest, brushes her raven black hair out of her face. She doesn’t remove herself from my cock but still says calmly, "I think I have a way to test this out. Whatever we do, we have to make sure Lawan is absolutely on board. This is asking a lot of her too."

Candace collects herself, swallows hard two or three times before tilting her head towards the edge of the living room where Lawan is wearing nothing but a pair of white panties and a crop top. She is staring at the three of us while chugging a whole pitcher of water, drinking so desperately and so struck by what she's seeing on the couch that water is splashing over her lips and streaming down her neck.

She finally stops drinking enough to offer an explanation, "you all were screaming so loud I woke up. And I woke up crazy thirsty, like insanely thirsty. I thought this would be the best way to not interrupt."

"**** thirst could be a side effect," Candace notes before hopping up to write that down.

"Lawan, honey," Piya starts before climbing off my cock, reaching for the blanket she abandoned earlier and quickly throwing it across me and her. "Why don’t you come and join us. I have something I want to ask you."