A handjob from friend's wife

This happened years ago. I had a friend with a wife he met in Japan. She was oh so hot. I loved to visit just to see her body. When I saw her in the pool that was it. I was married at the time and my wife had a rule, I may look but I musn't touch.

She was always kidding around. She'd yell down to her husband that she and I were going to have sex and not come up for at least an hour. We'd really just be listening to music and talking. He'd be cleaning the pool and we would wave to him from the upstairs window. On more than a few occasions she overtly made an effort to have sex with me. I would let it go, attributing it to her humour. Though I wanted to, I never dared as I was sure my wife would find out. I told Yumi of my hesitation and she assured me that it would never happen, she and her husband never said a word to anyone. That was the first rule of swinging. She waved to her husband sunning on the patio and gave him a sign. I told her of my promise and she talked to me for close to an hour seducing me. We agreed that if she took off her swimsuit she wasn't breaking my wife's rule. She did and I was hard instantly. She got me to take off mine and soon we were both masturbating looking at each other. She pulled a rubber glove out of a box, since my friend and I were both Doctor's. Yumi reached over and stroked my cock with her glove on. "Look, no touching. I'm not touching you. God, I want to see that beautiful thing shoot. I knew it was big but I didn't imagine it to be this big." I was getting off seeing her pretty little pussy. She had hair only on top, none along her slit. Black straight hair, not curly like ours. I shot off in her hair. She came and hopped in the shower. I went down to the kitchen, popped a beer and had it with her husband by the pool. We never did speak of it. It was like it didn't happen.