I was about 13 when I first tried on my sister's school dress, no underwear, just the dress - loved it!
When I was 15, a friend (male) dared me to undress him - I did, then he undressed me. We just held each others cock, nothing more. We progressed to wearing his mom's undies, then one night he came round when my folks were out, and I put my sister's pink baby-doll on, he put her blue full slip on. We then swapped over, then swapped back again - as I pulled the sheer panties up, I ejaculated which we both found funny! We then discovered girls and lost contact.
I still felt the need to dress, and once I had moved out of the family home I bought various items of lingerie, and used to take pictures (B&W, developed at home!)
This continued until I married, then I cooled it down. But business travel gave me the opportunity to dress in items I bought.
Then the internet came! Oh boy, lots of other perverts like me!
I got a cam, got more lingerie, and managed to recycle stuff the wife threw out. I discovered that guys appeared to like what they saw on cam - quite a few spurted spunk as I played in my lingerie.
I enjoy broadcasting (Chaturbate) and also c2c on Skype. Wife has no idea so I need her to be out which is not often.
Well over 60 now (and retired), don't get as hard as I used to but still spurt a decent amount of spunk!
I guess I'm bi-curious, never done anything with a guy apart from when I was young, but do enjoy a good mutual wank session on cam.