"Ladies, it's me, Dr. Grant. I came here to check my data." the ginger geneticist said.
"Okay, doc. Mei, Dr. Grant's here." the snowy haired beauty said to her bed mate.
Mei rolled out of bedand stood to face the scientist.
"It has come to my attention that there may be a mix-up in my analysis of the anit-virus' effects. " Grant explained, "I know one of you used to be male, but I'm not sure who. I'll need a sample from both of you."
"Sample? What kind?" Mei asked.
"Well, it's not taken with a needle." said Dr. Grant, "It's a little crude to ask but..."
"He needs you two to masturbate and get you cum into a cup." Morton said as he entered the room.
Both girls turned bright red and what they just heard.
"Here's the cups, follow me to the ladies' room." the CDC head said as he handed two small Mcdonald's cups.
The pair followed him and entered a stall once they were inside.
"You girls have fun in there!" Morton said.
Cailin started herself up by kneading her DD breasts. The fleshy mounds felt so pillowy soft, every squueze sending waves of pleasure to her body. Cailin had jacked off as a guy, but this felt so much better for some reason. The white haired girl moaned as her left hand gravitated to her pussy and began to probe it. The sticky fluid Dr. Grant needed oozed into the cup almost instantly, as Cailin bit her lip from how damn good it felt to finger her pussy.
"Ohhhhhhhhhhh... OHHHHHHHHHHHHHHHHHHH!" Cailin and Mei moaned out as they both runbed a tiny nub in their clits that sent out more pleasure than anything before. This caused them both to blow a huge creamy white load into each cup. As both girls gazed at the cum on their fingers, they decided to...