So tonight my wife and I (both 44) were having sex and we were talking about our go to fantasy of having sex in a foursome with another married couple. I always love hearing her talk about another man fucking her. I'll even tell her to "Kiss me like you would kiss him" and she'll give me a passionate open mouth kiss. Tonight she brought her A game. We like to fuck in a variation of a spoons position (I've read that it's called flanquet). We're side by side with our legs intertwined. I'm completely laying on my side thrusting in her while she is flat on her back. This gives her full access to her clitoris. It also from my POV looks like she's being fucked by someone else which I love. Usually at this point she'll start by saying "Who is fucking me?" and we'll go from there. But tonight she says "I want you to fuck me in this position while I suck another mans cock...I want him to rub his cock all over my tits while his wife eats your ass." We've never mentioned any ass play before between me and another woman but this was so out of the blue and so fucking hot that I came inside of her instantly. We laughed and I apologized but I made it up to her by eating her out after I came in her (another kink of ours).