My Wife's Bi Boyfriend Wanted Me To Join Them For A Threesome

My wife is having an affair with a bi guy we have an open marriage and we both have sex with others. He asked her to ask me if I would like to have a threesome together I thought about it and figured what the heck why not. I set some ground rules and told them I wouldn't suck his dick or let him fuck my ass I would consider letting him blow me and I might fuck his ass. We got together last weekend and it was fun my wife was sucking both our cocks while I fingered her pussy and he fingered her asshole. We got going and I was so excited to see him in her pussy while I stroked my dick I shot a load on her face and he came all over her pussy. We cleaned up and started over again this time he was sucking my dick while I was eating her pussy. He wanted me in his ass so I figured why not he entered her missionary and I put some lubricant on my cock and fucked his ass as he was cumming in her the contractions in his ass made me cum. That was it for the first time we showered and he went home and we went to bed. We talked about it and she said she really wanted to see. me suck his dick I told her I would think about it. We got together the next weekend and it was pretty much the same good time his dick was fucking my wife and when he pulled it out it was shiny with her juices she asked me to please suck it and I did until he came in my mouth and she said swallow it I did and it wasn't that bad. We get together often and do it all except I won't let him in my ass he's to big but my wife likes him in her ass so that works.