Just pushing nude wife into friends shower

Kurt was one of the guys that got to party in my wife's prim little pussy, and the only one she had a little school crush on. So on a day I was going to give him a ride to work,and she came along. When we got there he was in the shower, and I got the kinky idea of giving my wife and Kurt a unexpected treat of each other. I just started undressing her and she thought I wanted a quickly, but was surprised when I pushed her into the steamy bathroom and trough the shower curtain,then I left the bathroom expecting to hear a short flurry of sex then they'd come out.Well there was the shower wall bumping, her moaning his grunt getting off. the shower turned off, I could hear her toweling him off, then sucking him, then the shower went on and they fucked again, then on the counter, and on the clothes hamper.I hadn't expected to wait 45 minutes Kurt got 4th's and was late for work,his supervisor knew he did a married lady once in a while, and we offered for her to go in and tell his boss why he was so late.I still push her into a different shower once in a while.