when I was 11 i had my first wank with a straight porn magazine from my older bro, i still remember the plot very well, it was about a jiu-jitsu instructor and his female student, at some point they start fucking. i only had eyes for the instructor. i was obstinate, really thought if i did it long enough i'd nut eventually. so wanked furiously... until my willy got all sore and red and i gave up. it hurt for a couple of days after that and i was really worried that i did something i shouldn't. so i never tried wanking again until I was 13.
as soon as i turned 13 i took the exact same magazine and rushed to the bathroom to try again, and this time it really felt very different, once i started it already felt really good and i couldn't for the life of me stop even if i wanted, and then i jizzed a watery blob and went on about life. i jerked off several times that day until i got sore all over again, then i stopped for a few days 