A team of strong gym girls

Looks like a lot of people here today John noticed as he went towards the treadmill. He got a full view of all those women on the weight machines. Lifting weights and doing squats as he was running on the treadmill. Every squat gave his heart flutter as he saw those huge asses go up and down. As he was running his own ass started to slowly bubble as his own fat levels went down and towards his own chest. He went a long time and didn't notice that he had to go back home so he went out to get changed but he took another glance at the women working out and resolved to try weight lifting tomorrow.

As he went into the changeroom he noticed the mirror and took another selfie not noticing that his hair grew out and the shirt and leggings were getting tighter on him.

When he got home he was really tired but all he could think about were the women he was seeing. He got home and went into his sister's room to put back the gym bag when he thought why not go all the way. No one was here to see it so he took off his clothes and put the leggings back on as the leggings touched he felt good and aroused as the soft fabric hugged his legs ass and pushed on his dick which was getting even smaller.

Then the sports bra,

He looked in the mirror and was like this is amazing as he starts touching himself. He gets more and more aroused as the changes start taking more pronounced effects, his bra filling out with breasts and his hair growing as well. As he cums his penis completely inverts becoming a pussy. She falls asleep in her sister's room as her mind is full of girls and gyms.