...give Dawn a second dose. "The serum has already made Dawn a very hornly girl" says the doctor with a smile as Dawn starts sucking on John's cock to get it hard again.
"I'm curious to see if this dose will make a perfect female body and mind". "Right now Dawn has a better than average body and is rather willing to have sex as much as a man needs or wants, but I think we can do better"
The two weren't listening as Dawn climaxed for the second time as a woman, while John came the second time in five minutes.
Dawn layed panting on her back, mouth dripping from saliva and cum. She knew that her name was Dean and she shouldn't be wanting her best friends' cock in her mouth and new pussy.
The pleasure she got from him was wonderful but she got more pleasure from knowing she was able to give great sex to this man.
The doctor with a syringe in hand approached Dawn with a sickenly sweet voice.
"Don't worry honey you'll be a much better slut after this shot"
He roughly grasped her arm and stabbed the needle into her vein, knowing she was to spent to fight back.
As he shot the liquid in her he explained
"This second dose should slim your waist down, get those newly formed breasts of yours nice and full and firm, its going to also work your lower body giving you the best tight, round ass any man would want to grab while doing you doggy-style."
He finished the injection and told her "you should also feel your lips get fuller, giving you a nice dick sucking mouth."
"Do you feel the desire boiling up in your mind Dawn?"
Dean looked down at herself everything the doctor had been saying was true. Her body was changing into exactly what she would want in a one-night stand girl, had she still been male.
She touched her vagina for the first time and felt a shock go through her body. She unconscienly let out a very sexy moan. She slid her finger in her opening and it was dripping wet.
She stroked herself for a while while she felt the rest of her new and exagerated female body.
Dean's mind came back to him and she stared at the grinning doctor. She then let out a cute feminine "Why did you do this to me?"
The doctor just smiled.
Dawn saw his hungry eyes and should of cringed but instead she just wanted to welcome him in her.
She looked him in the eyes and gave him a slow lip lick routine.
The doctor unbuckled his pants as Dawn got on her knees in from of him.
He held the back of her head as she bobbed back and forth and slid his cock around her cheeks. She slid her mouth all the way down to the stem of his cock.
The doctor knew she now had no gag reflex.
Dawn slowly licked her way back up his cock, then began sucking on the tip again.
Dean's mind was still there she was just enjoying the please she was giving too much. She could feel her tits slapping back and forth as soon as she had went down on the doctor, but she knew it just inspired more lust in him... and her.
Dawn gasped as the cock in her mouth exploded. She sucked down what she could while the rest spewed all over the mouth, chin, neck and tits.
She loved it and knew this would be her new life.