I don't remember when I started, or even why, but I remember getting a thrill out of pretending to be a girl online. I guess it was the attention; It's the men who do all the chasing, and being a girl gave me a unique kind of thrill. I've never tried to make a guy feel stupid or tricked, I don't exploit people for money or gifts, and I've always tried to let guys who wanted love down easy. I just liked wearing the skin of a slutty girl.
Second Life was magic for me. It had enough visual stuff to satisfy men, so they weren't always asking for pictures. My avatars were cute and perfect and they got me a LOT of attention. So much so that I actually became a SL sex worker. I got paid to have cybersex with guys. I even broke a few hearts, I'm afraid to say.
Back then I didn't even think I was bisexual. Up to this point, I was rationalizing it with the thought "I would get turned on by a girl who acted like this, so I'll just do it myself". As I've gotten older, I frequently wish that I could live that life.
I could go back to Second Life, maybe revive a character, or create a new one. Really, it was some of the best money I've ever spent. The game is free, and all the basics are free, and the stuff you need to buy is less than $20. Totally worth it.