I have been going to the gym for a few years and my boyfriend started recently but we’re going to different gyms because I like the one I go to more. One day I decided to go with him for a week to his gym. Because he started going to the gym recently he has a personal trainer who is also his friend. My boyfriend introduced us to each other and I started my workout. He was staring at me the whole time. I finished my workout earlier so I went to change my clothes and I caught him peeking at me as the door wasn’t closed properly. This made me so horny so I showed him boobs and he said I can find him in the bathroom. We fucked for like 20 minutes while my boyfriend was running on the treadmill and it happened 2 more times that week.