I have sex with the young postman

I've been dating my girlfriend for a while now and I've grown tired of our routine sex. Don't get me wrong, she's amazing in bed, but I crave something different. When the postman comes, I get this wild idea to have sex with him. I tell my girlfriend about it and she's surprisingly into it. We wait for the postman to come and when he does, we invite him in. My girlfriend starts teasing him, showing off her body and he can't help but get turned on. She starts giving him a blowjob while I watch, and then we all get down and dirty. The postman fucks my girlfriend hard and fast, just the way I like it. I join in, taking turns with him, fucking her in every position we can think of. In the end, we all cum together, leaving us all satisfied.