Only has happened to me once, but it was definitely an experience. It was 2006 or 07. Wasn't planned (and the sex wasn't either!). Not the biggest fbb, but very well known and very beautiful (and no, I'm not going to name her). She was in a good mood when I showed up at her hotel room and I was the last appointment for her that day. She was hungry and asked if I wanted to go out for dinner. This was in Vegas and we went to the Hard Rock Casino to eat because it was real close. She was wearing a very sexy dress too. We walked there and she held my hand the whole way. I felt like a king! We were getting looks from everyone. Several guys whistled at her and of course a lot of disapproving looks as well. I'm always amused by peoples reactions to fbbs! After dinner we had a couple drinks at the bar and talked. Then we went back to her room for some sensual muscle worship. She told me she didn't like to have sex during sessions which I took to mean we were not going to have sex. I let her know I wasn't expecting anything "extra" to happen and it was all good. Then when the session ended I was getting ready to leave and she stood in front of the door. She looked at me and gave me a sly grin. The next thing I knew we were on the bed. It was hot in the room which made us sweat more than normal. By the time we finished we were covered in sweat and I asked if I could use her shower. She said go ahead. I got in the shower and I'll never forget her opening the shower door, not expecting it and how amazing she looked standing there naked. Nothing like watching the steam come off their hot, wet muscles! If she's open to muscle worship in the shower, go for it! Just be sure to always respect their boundaries.