Well Im 19 and have an extremely high sex drive (borderline sex addict lol), so I havent had that problem yet. Had an embarassing moment with an ex a few years back when she was 'helping me', and when I came I had this terrible pain in my abdomen. Five minutes later I was being violently sick in the bathroom, and whenever I came for two weeks after that the same would happen. Luckily, it was down to the meds I was on, and from then on I was put on different meds.