What's going on???!!!

Nannie24
Ok so like 89% of the time me and my boyfriend have sex I always have to pee..and it's strange cuz I go before we start and it seems like right when I'm about to orgasm I have to pee lol and it's a lot of pee not a little or a tinkle... Idk why this happens. 
Can somebody help me on to what's going on or has this happened to anyone else??