Update:
It seems that she was trying to mess with my head a bit. I was surprised when she suggested it, as she's not exactly super adventurous in terms of fetishes.
Here's the deal:
My lover and I have been talking about trying new things in the bedroom and she has recently told me that she has a desire to pee on me while I penetrate her.
Any ladies or gentlemen here have experience with this? I'm not talking about having her pee on my face or anything like that, just while I'm fucking her.