While I haven't used this particular product, I have used something very similar in the past. A woman who I used to have sex with (some people call them a wife) used one that she had bought for herself on me. She used to stick it up my ass before we had that icky man on woman sex. The egg would massage my prostate while causing my hard on to vibrate while inside her. She loved the feeling as did I. I would cum gobs from the prostate stimulation and, of course, I like having things jammed up my ass. My 'on the side' man is wanting some toy suggestions and I think this is going to be the product I suggest. I will have to write another review to let everyone know how well it works.