When I have sex in the dark, how can I find my girlfriend’s clitoris?

You can find the clitoris in the middle, just beneath the mons, where the inner lips join together. If you rest the palm of your hand on her mons (the part that is covered with hair) and you let your fingers point down, these will touch her outer lips. When you push these a little bit aside with your fingers, you have a good chance that your fingers will then touch the clitoris. Wet your fingers beforehand with some saliva en move them up en down or in circles. But don’t rub the palm of your hand too much against the mons, for then the hair will irritate the skin underneath it. Use two or three fingers instead of one: this increases the chance of hitting the hot spot. But of course you can also ask your girlfriend. She can show you where to touch her and what movement works best for her.