Did i have an ?

i'm 16 and i just started masturbating like a month ago...and i think i had an , but i'm not sure. i had a really good sensation you know where, and then it got stronger and my body kind of lunged forward a little bit, i cant really describe it. was this an ? i just want to hear straightforward answers, not anything perverted please. and also, if it was an , are there ways to make it stronger and longer?