I would say the day I lost my virginity. I thought I was a woman! No, I may not have been a woman then, but I DID feel more grown up, sexually attractive, and knew I love sex.

The next would be when I had sex for the first time with a girl. It "consummated" my bisexuality you could say. Something I already knew I was, but hadn't yet experienced it sexually.

The last would be my first Gang-bang. What a blast!! I then knew how REALLY slutty and daring I am! I felt like I could do ANYTHING sexually! I was on TOP OF THE WORLD!!!

Ok, I'm calming down now. I had masturbated to orgasm about 45 mins. ago and I'm feeling GREAT now!

BTW, another great question. You new guys ROCK!