The interesting thing here, is that I did all this without even touching my ass. While lying on my bed masturbating, I imagined several of the girls from my class in my apartment bedroom. Well, I imagined various things, but it ended up with one of them fucking me in the ass. It was quite erotic, in that the girl who fucked my ass wasn't actually all that hot, but it was the presence of all of them there watching me. It wasn't something that I'd have anticipated myself imagining that made it more exiting. When the dildo slipped in, I moaned "gee that feels so good, oh my God I'm so embarrassed, I'm so embarrassed". They laughed at this, and said "don't worry now Billy, just enjoy it", while she continued to ease her way in. My sphincter was aroused with pleasure, as she ever so smoothly went further in. After getting her bearing, she then went for it!! I humped my blanket while imagining this, until I got off. What was interesting here, was the way I felt after the orgasm. Apart from the guilt, I felt good in my butt. And I also felt very good in my stomach area. It was as if it sent pleasure right up my digestive tract. Now I couldn't have had a protate orgasm, could I? But I do wonder what was occuring, physiologically, during this orgasm. I've never desired to put anything near my butt, so was this like a vicarious anal orgasm?
