This explains a LOT.

Being a woman, there are plenty of things to worry about. If it's not your mental health, it's your physical health and if it's not that there's the small matter of your vaginal health to worry about too. We're constantly being urged to look for symptoms of ovarian cancer and yeast infections but there are plenty of strange sensations during and after sex that leaves us a little worried. In regards to sex, there's nothing worse than being in the heat of the moment with your partner and suddenly feeling like you're going to burst because you need to pee. Now we know why that happens. According to Refinery29, that sensation of needing to pee while having sex is totally normal and happens to lots of women. Sex expert Dr. Logan Levkoff has clarified that it's not down to how much you've drunk nor your peeing routine, but rather the design of your anatomy. Dr Levkoff explained that penetrative sex can put extra pressure on the bladder as it's so close to the vagina, with couples practising anal sex more inclined to make the woman feel like needing to wee. Another theory why women may feel the need to pee during sex is because of the stimulation of the vaginal G-spot. Dr. Levkoff told "When the G-spot is stimulated, fluid pools around it." So the sensations you're feeling down there could be you needing to pee... or just ejaculate. YAY! It's nice to have so many options isn't it? It's nice to have so many options isn't it? Either way, needing to pee during sex is a totally normal thing so if you need to go gals, just go!