Body Building GF’s Shock Growth

Your girlfriend Claudia comes home with a growth serum she bought off a guy at the gym. 'He was huge' she explains. 'Like, as if a mountain put on a shirt.' She isn’t sure exactly what was in it, but figures, what is the worst that can happen? Maybe it won’t work at all but it can’t hurt to try. She swallows it down, pulling a face. 'Ugh this tastes awful. I sure hope it does do something after all this' Almost immediately she notices changes. Her sports bra is tighter than usual, her nipples popping out of it. Plus she is swinging between being anxious about how quick she’s growing, and incredibly, distractingly, horny.