Tied Up & Blindfolded Wife Then Let A Friend Fuck Her

We're in an open marriage and have been since we got married. It's the second marriage for both of us and I'm the only one with kids that stay with my ex most of the time.

Anyways, I've always wanted to let someone close to my wife fuck her without her knowing. I shared this fantasy with her and she thought it would be fun too. So we go to this crossfit gym and one of the trainers is younger and always talking to us. Long story short he was all about fucking her.

My wife and I have a few drinks, and I tie her up on the bed face down, ass up with some pillows under her, with a blindfold on. I start to fuck her but I'm too drunk and tired and honestly can't keep it up.

The doorbell rings and I ask her if she's still okay with it and she agrees. He comes in and I show him my naked wife tied to the bed. He plays with her tits and fingers her pussy for a bit before pulling his pants down.

This guy is in his 20s and was rock hard. He shoves his dick in her pussy, not taking it easy. She screams a bit and starts to say "slow, slow, slow" and I know she's just wanting him to warm up her pussy again.

The guy takes his time and fucks her and my wife cums hard on his dick for him. Afterwards I show him out and untie my wife. She sucks my dick for me and even though it never gets fully hard I cum on her tits and we fall asleep shortly after getting cleaned up.

The next day she's asking me who it was that fucked her. Her first guess was my brother and I kick myself because that would have been a good idea. She guesses a few and eventually guesses the guy that fucked her but I never let on. Now every time at crossfit she's going to talk to this guy all the while wondering if he's seen her naked and heard her cum on his dick.