I will never ever forget the first time I experienced this. My girlfriend, lovely petite and Japanese, had let me know she loved pee play and we'd tried a few things -peeing in each other's mouth, over each other while naked in the garden, and in the bath and shower. One evening we decided to try peeing while in bed, and put plastic sheets over the mattress and then regular sheets. My girl had this idea to have me pee inside her vagina during sex play and we tried it. We drank LOTS then got naked in bed and started to play. she got me really hard and took me deep inside here with a very full bladder (hers was too)/I did not think I was going to be able to pee as I was really hard but she pressed really hard on my bladder bouncing up and down on me and I started to spurt pee inside her and once started there was NO stopping believe me. I emptied myself inside her and pee started squirting out everywhere. so hot. then she let her pee go totally while I was still hard and inside her c**t. SO hot. Will never forget this. We fell asleep in huge pool of pee and wet sheets, when we woke in the morning we had the most amazing sex. If you ever read this and recognise the occasion get in touch, I want to do it again.