Our first time with another couple.
My 1st wife and I liked to visit with our friends Sonny and Laura.
One evening we got drunk, Laura was talking about bras, my wife mentioned she never found one that fit.
Next thing we knew, they were trying on each others bras, since both were about the same size.
Sonny and I were enjoying the hell out of looking at their boobs, and he suggested we swap for "just petting." is what it was supposed to be.
So we did, and before long I looked over and my wife was nude, so I quickly saw to it Laura was nude also.
Then Sonny gave me a thumbs up, he was licking my wife's pussy, then slid up and they were fucking, so I fucked Laura also.
That was a fun couple of years, then Sonny got caught with another woman and Laura divorced him.
Not sure why, we know Laura was fucking around also.