Is it normal that i want my boyfriend to pee in me

Me and my boyfriend have been together for about 6 years and we have a good sexual relationship, but for about the last month and a half I've had reoccurring dream where we are having sex and he tells me he has to pee, (I know, that sounds like the biggest mood destroyer ever) and I look at him and tell him to just go inside me, and even though he shows skepticism, he does. When I wake up from these dreams, I feel so turned on, and I've been thinking this over for a while and I've come to the conclusion that I really do wanna do this in real life but I have absolutely no idea how to go about asking him to do this or if it's even relatively normal.