Yea bearfun it is the best orgasm. I found myself using butt plugs and dildos to stick up my ass after my first anal fuck cause I knew I was too tight. With time now I have no fear of a guys cock size. Try getting down in doggy position with your butt high in the air and practice different stroking in there till you feel him rubbing it. I do like being on my back too with my legs high on b/fs shoulders and work the angle out in position till I feel it on my prostrate. No need to touch your cock after you learn what a wonderful orgasm you can have just from fucking like this. Be sure to tell your lover what feels best and talk through it. You wont regret it
