Alright, so I'm 14 years old and I've been masturbating on average, once or twice a day for the past 7 years. Usually I do a dry masturbation, just because I find it more pleasurable most of the time. Every once in a while I will use line though, and I didn't experience any problems until recently. It was about a month ago, I had used the same lube I always do (it was a clear, water-based lube), but this time, as soon as I started to orgasm, it felt like the tip of my penis was being rubbed with sand paper (as you can imagine that was quite a turn off and I stopped immediately.) I lightly touched it with the tip of my finger over the course of a few minutes, each time it felt just as sensitive, eventually it went away. I haven't used lube since and have just been doing dry masturbation. I've noticed since then that the tip of my penis is more sensitive in general when turned on, and that I've been ejaculating very time I orgasm (before it would be once in a blue). I'? pretty sure it's just a normal puberty thing and I'm not worried at all. I just wanted to double check and see if there's anything I need to do. Thanks!