Fitness models

Carrie nods her head to your response and agrees to share this information with Emily. Of course, a change like that isn't going to be quick, but you're in this for the long game - both in terms of your relationship with Carrie and the possibility of some fun with your sister.

For the next few months you continue to have many different kinds of sex with Carrie to experiment with the limits of her promise to do anything, and she continues to tell you of her sexual escapades with Emily. You notice when you see Emily in that time she is dressing so as to cover her body a bit, and when you ask Carrie about this, she says that Emily has told her that she doesn't want you to see her body until she's sure that she has the type of body you're looking for. Carrie also tells you that she promised Emily not to say anything about her changes.

So, it comes as quite a shock to you when Emily decides she has the body she wants to show you. She invited you by her place, and when you get there you find she has just finished a workout apparently. Her long hair is pulled back into a tight pony tail, giving you a clear view of her face. You realize she looks even more beautiful than ever, probably because of the health benefits of the work outs she's been doing. Her skin looks flawless, and even without makeup the look in her eyes and the smirk on her lips are near intoxicating. But it's when you look down that you get the biggest surprise. She's wearing a halter top and yoga pants and doesn't appear to be wearing any form of bra whatsoever. But it also doesn't appear she needs one, as her breasts, which you already knew were quite spectacular, seem to have become firmer and heft themselves aloft atop her no doubt firmer pecs exposing some cleavage through the neck of her top, which is also completely off one shoulder.

You weren't joking with Carrie when you said you were into fitness models, what you hadn't anticipated was the drive and stamina of your sister. In the months since you had seen her body last she had transformed from a healthy young woman into a hard body super hottie. Her tight abs showed at least a 6 pack, fully exposed to you on her narrow waist, before flaring out to a dramatically shaped pair of hips. Her tight cloth pants were clinging to a pair of legs with the shape of a dancer but the definition and size of a top class sprinter.

"Hi," she said before turning to walk back into her place. You realized she'd been watching your eyes scan her body because she timed this turn to be exactly when your eyes were down at her legs. She knew your eyes would be immediately drawn upwards where they became locked on the most spectacular ass you'd seen. And that included in many of your favorite fitness models insta accounts. As you followed her inside you knew your hard on had to be clearly visible. You nearly tripped over the door frame and stumbled awkwardly enough for her to notice. Especially when you reached out for support and decided that the twin spheres in front of you would make good support.

Your sudden fall into her didn't seem to cause her any problems - her new tight body able to instantly adjust to the sudden push from behind, she didn't even break stride. But you did realize as you felt up your sister's ass, originally by accident, that she did decide it would be a good time to flex her perfect ass in your hands and the feeling of the warm steel like muscle under your hands actually caused you to cum a little.