body changes after sex

Deedee • 23. Future counselor. Instagram & Twitter: @deedeebettis
I don't know if I'm just imagining it but every time I have someone to consistently have sex with, my body gets a little bit curvier. My butt has been somewhat flat after not having had sex in almost a year. Now that I'm active again, it's firm and back to the way I like it 😬
Does this happen to anyone else or am I just crazy? 😂