Ok, I know this has been covered on here before, but I searched diligently and couldn't find a thread on this particular subject (so please, spare me the "Well, if you'd just try search..." replies...). My roommate and best friend is considerably younger than I (he's 25, I'm 51). He chases women and has never given me the slightest indication that he'd ever want to do otherwise. Last night, we were drinking and the conversation turned to sex. He knew that I had a similar friendship (me 25, friend 50) when I was his age. What I told him was that my friend and I had wound up having mmf sex. He was very intrigued and questioned me closely on it ("So, what was it like?"). He wound up saying he would love to try it sometime if I could find the girl. We had been sitting on the patio; we came in from there and turned on the TV. I called up the Playboy channel just to see what he would do. To my total shock, he immediately took out his dick! I had never even SEEN him naked before, he was always so modest around me. So, naturally I took off my clothes; he took off his. He had mentioned shaving his balls; I just shaved mine for the first time and I showed them to him; I then reached over and felt his briefly, asking him how he got them so smooth. He grabbed my dick, played with it for a second, and started sucking me! Again I was shocked. We wound up doing "everything", including me fucking the daylights out of him, with him moaning and clutching the bed. We usually come into the den every morning for coffee. I came in in my underwear this morning (as normal). He came in stark naked (very abnormal). I wound up sucking him off twice (he IS 25...) before we got ready for work. I asked him if he was ok, and he said, "Sure. Just two adults having fun." Today at work, as is our custom, we exchanged emails. Tonight when he got home, he was very stiff and silent; went into his bedroom and shut the door (unusual). He spoke with me but it was weird. He's gone to the gym at the moment, which gave me uninterrupted time to write this. So, 1. Have I fucked up? 2. Have we messed up a wonderful friendship? 3. How do I handle it from here? I'll take anything he'll give me in terms of sex (it was absolutely wonderful, made more so because we do love each other and have for years as friends; he's never had a blow job like the one I gave him and nobody had ever given him a prostate massage to completion, much less fucked his ass). If we never have sex again, I'm good with that, sad, but ok. I just don't want to lose the friendship. Opinions?