OK, this is different.....or not, I'm not sure!
Before I've had a guy spontaneously ejaculate when I entered him without touching his penis. I've had some guys ejaculate when fucking him for awhile (again without me or him touching his cock).
Yesterday a guy I've been seeing this week had an anal orgasm in maybe the truest sense (?). We'd been fucking for awhile and switched back to the foot bed bench again, on his knees head/shoulders over the Sleigh foot board. (6' 205, big guy...does major squats!) This time I got my feet on the bench and crouched/bent over him from behind. It wasn't power fucking or jack hammering. Just very slow and consistent....romantic even ;-) He didn't ejaculate sperm, but had an internal anal orgasm. He was convulsing and was so sure he came (felt like it came in waves and buckets he said) he was looking to see where it went. It was pretty intense I felt his spasms while in him. We actually had to quit that position, it was TOO much. Neither of us had an experience quite like that before.
I just don't know what, how we did it! He's back in Ft Lauderdale....but that was a HOT 4 day session ;-)