Two days ago during foreplay my boyfriend realised that the skin just above my clitoris had turned blue . I looked at it, touched it with no pain and realised it looks like a small bruise. We have a bike we use to drive each other around in and the seat is a bit too high, putting pressure on my vagina. Could this be what has caused it? I m in a monogamous relationship and have been screened for stds before. It looks like a bruise but no pain or swelling at all. There s just blood under the surface where my two labia meet. Any help would be appreciated.