After work a few of us went for drinks to celebrate a leaving do. I spoke with a work colleague Tony at the do and we were generally chatting. Shelly also a work colleague in a different department was also at the leaving do. Shelly was a 51-year-old divorcee. She was very curvy and wore tight dresses that really showed her cleavage and curves. She looked a Goth with her dark hair, black eyeliner, pale complexion, stud nose, and tattooed arms. She was attractive and Tony and I both fancied her. Shelly came to sit with us and we started chatting. We all bought each other a couple of drinks and we were all definitely getting a little drunk. Shelly was very forthcoming when talking about sex and said she would like to have a threesome with Tony and me. However, she said we would have to comply with a few rules. The first was she would be tied to her bed and blindfolded; we could then play with her and have sex with her. We could only come on her tits and then we both had to stand over her and piss on her tits and pussy. A little taken aback Tony looked at me and nodded, it was too good an opportunity to miss. The thought of having sex with Shelly was a tremendous thrill. She arranged for us to meet at her house tomorrow night. Tony and I met at Shelly’s house at the allotted time. We had a few drinks together, Shelly re-iterated the rules and went upstairs to the bedroom. She asked us to wait five minutes and then to come up. We did as we were told. Wow…when we got to her bedroom she was on the bed wearing only skimpy black crotchless knickers with black suspenders and high heels, her big, beautiful breasts were freely out and her dark nipples were large and erect. Her body and legs had tattoos, which were incredibly beautiful and made her even sexier. She asked us to blindfold her and tie her hands to the bedposts. When this was done we started to play with her. We were like kids in the candy store. Our hands and tongues were all over her. We took our clothes off and she enjoyed the feel of our bodies against hers. I fingered her wet pussy, her clit was pierced and my tongue worked on it. She enjoyed this and her sighs and breathing got heavier and heavier, I felt a gush of wetness as she came in my mouth. I then fed her my fingers to suck whilst Tony licked her engorged clit. I fed Shelly my cock to suck and she greedily sucked it. I really wanted to come but remembered the rules so I pulled out of her mouth and started to play with her tits. Shelly came again as I licked her nipples and Tony clicked her clit. We told Shelly that we would feed her our cocks to suck alternatively and we would come on her tits, as she wanted. Tony would get a minute of sucking then my turn and so on. Tony came first and the sight of his spunk on her tits made me come and I spurted my thick white spunk on her tits as well. Shelly asked us to untie her and take off the blindfold and we enjoyed a passionate kiss from her. Our flaccid cocks were ready for her watersports. She lay on her back and started masturbating with one hand whilst the other was rubbing our cum into her tits, Tony then stood over her and pissed onto her tits and pussy, she moaned in delight. I then stood over her head and pissed on her tits, stomach and pussy. She masturbated hard as I pissed and let out a loud moan of desire as she came. It must have been a great orgasm because I didn’t think she would stop! We all lay down on the wet bed together exhausted. I had been quite excited by the watersports and asked if Shelly would squat over me and piss. She said she would be delighted. As she squatted over my chest I starting wanking, the anticipation was intense. And then her piss started and I felt the warm liquid splash on my chest, she sprinkled over my chest down to my cock, I wanked hard, she then sat on my face and I came with an intense orgasm shooting my spunk over my wet chest. Tony was wanking at the sight and I told him to come on my chest, he did and Shelly quickly licked my chest that was wet with cum and her piss…it was incredible. We eventually all showered and went our separate ways vowing for another session soon. So surprised that watersports could be so erotic. Having a woman squatting over me and producing that warm liquid over my body was so erotic, it seems very few people have tried this so perhaps it is a real guilty pleasure.