I arrived extra extra early for yoga class. Noone was in the gym at all. I went to the to the changing area next to the whirlpool, sana , and wet room. I was taking off my p****** to change into my yoga shorts when I heard somthing coming from the wet room. It was my yoga instructor between two very muscular men. She was kissing them both. they were all completly n***. I couldnt help but to rub my c*** as i watched her start sucking both of their dicks. I reconized both of the guys one was a reular that I have seen lifting weights with his friends. the other was a personal trainer that has helped me a few times in getting the right form. She looked at her watch and I could hear her say somthing about the time. She bent over a seat and one started f****** her hard as she sucked the other. My p**** was soaking wet and I know I had already had 2 orgasms watching them. I could hear somthing in the main room. So I looked to see what it was. It was a couple of our girls chatting. I ran back over to see what my instructoer was up to. I got there in time to see them c****** on her b**** and rubbing it in. She kissed them both and started for the showers. I Got into a shower and rinsed off because I knew I smelled like sweat already. I got out and dried off and she sat next to me and said how long have you been here? My face was red with embarresment then I realized she knew that I knew. She just hugged me close (no towel between us) She wisperd top me we can talk later. We got ready and had a great yoga class as if nothing happened now I cant wait for her to call.