When I was between 13 and 25 years old I was constantly horny. It was a problem - whenever I was not busy my mind would wonder and I would get an unwanted erection. Whenever I tried to meditate or do some boring task my mind would drift to whatever women were around me or who I had seen that day. In high school I was terrified of being called to the front of the class. I remember taking the bus to university and having to use gross imagery to try to get rid of the boner before standing up to leave the bus - the image that worked best was of a wino throwing up in my mouth. At the time a popular image for doing this was "imagine you are sliding down a giant razor blade using your balls as brakes". When it came to actual sex I needed it much more than the girl, which was frustrating for me and a lot of pressure on her (or a huge power advantage for her). I was well behaved, did not cross any lines, but the issue was there. For me the best age range sexually was between 25 and 45 - I was still healthy and really liked sex, but the desperation was gone, and women my age were more sexual. How about you guys (and girls?) - what was your peak age range for enjoying sex?