This happened to me twice with different masseurs. The first one, I call him Zan, I saw in the steam of a NY gym. My height, body of a gymnast, big arms, smooth skin and an impressive thick 8 incher and low hangers. He was being sucked by another guy, I stand by him and work on his nips and melon hard glutes. When one of my fingers approached his button hole he wriggled appreciatively. Soon thereafter there was an intense three way climax, with Zan depositing a big load on the other guy's mouth and I on Zan's glutes. I followed Zan when he left the gym, said hi and told him that I would like to see him again, he gave me his card and he turned out to be a masseur. I will call you I said.
The other advertised at the time as masseur. I'll call him Atlas. Impressive rock solid body, big muscles all over, amazing ass, good cock and big balls which I got to see when during the first massage he agreed to continue nude.
When I had my first massage with Zan and my second with Atlas, both new that I was hot for them. Yet, I had no expectations beyond a HE. Well, as the massages progressed, as my ass was rimmed when facing down, and my cock sucked when I turned around, I was babbling excitement. Both guys towards the end of the sessions kneeled between my legs to work on my chest, abs and below; expertly each one grabbed my then hard cock and sat on it letting a well pre lubricated hole take me in in one try. That was a first and totally unexpected. I felt like a horse being ridden and in both cases I exploded like a horse inside their fabulous asses. I gave very good tips of course and had several repeats thereafter. Zan does not publish and Atlas is no longer around.