I have a lot of sexual fetishes including waterports (piss sex). I once paid a hooker to piss on me, and I've also pissed on a gay man while he jerked off, but I've never even mentioned it to my wife as I know shed be horrified and disgusted. She also isn't really into sex that much.
Sometimes when I'm really horny, if shes elsewhere in the house and I'm making her a hot drink, I squirt some of my piss into it before I take it to her.

I've also pissed a bit in her shampoo and mouthwash.

It makes me hard knowing shes such a prude yet she has gulped down my piss and even brushed her teeth with it without knowing. I'd love to hold her head and piss in her mouth.