Ring is usually a term used for the muscles which tightly close your anus or love chute in this case. An experienced Top dude knows that he needs to pass thru that ring without brutally forcing his way thru and causing you an immense amount of pain.
Most likely, one of the reasons, you did not enjoy getting fucked in the past was that the top guys lacked the patience to work their way through properly.
Dildos and butt plugs + some other toys might be useful in helping you relax and loosen the muscles for the forthcoming intrusion. Yeah, and plenty of lube, goes without saying.
Enjoy and feel free to ask more, if you want to.
KD
