18M on sex holiday with 40M, others watched

I've been in trans now for a while. I had small A cups put in my breasts, I'm on hormones now. I've always been very small for a guy, 5ft. 8in tall, very thin, smaller waist than my hips. I have natural blonde hair I usually have it trimmed in a 2 inch wide strip. I still have my testes but they were never too big, now are about the size of a large marbles. I can push my little ones up into my body, take my little clit and wrap the sack around it. I then super glue it together, and with it between my legs, and my blonde pubes I look very much like a girl when naked. I have one friend who is my age who takes me to the nude beach near our houses regularly. He got a bit jealous, called me slut and whore because I went to the islands with an older man. I went with Sam. He is married to a woman, but she knows that he sees me too and doesn't care. She doesn't like to let him cum in her mouth, and will not, absolutely not let him stick his very very thick cock up her butthole. I do all the things she won't do, plus I'm not a mom, I don't say no, and I'm very cute whereas she is 43 years old and bored with sex. I've seen nudes of her, even when young and she wasn't that hot.

So, granted I did sort of whore myself out to Sam as my friend says about me. I wanted to get away, and he offered to take me to a nudist resort in the islands. It was winter and I needed the break and the sun. Sam likes me to glue myself (called mounding) and I style my shoulder length blonde hair nice for him, always wear sensible makeup, not overdone. He is the one who paid for my boobs. I didn't want big ones, he wanted B's and I took A's. He was a bit disappointed but he sucks on them like he's getting lifes essence from me. To tell the truth, I have started getting some clear fluid from them and he loves it, he says hes nursing and getting "milk" from me. The day we got there, we got to the room, I assumed he'd want to fuck or at least get a BJ but no. I was in a tiny little bikini, he in a barely there swim suit. My pert ass was on full view, I wore my hair in a ponytail, and the front patch barely covered my pubes. In the buildings I wore the top, two small patches which covered my nipple area only. He laid out a blanket, and we laid down, he had me take off my top. He starts rubbing sun screen all over me, and gets excited. Right there in front of probably a hundred people on the beach, he starts to fuck me. I'm on my belly, he's on top of me plowing into my ass. I noticed some people watching us, I'd never been watched having sex before. Then I saw down the beach a few more couples, though male and female, fucking too. Sam came, some of the people applauded and my bikini bottom string going up my rear broke. My "mound" was showing as I turned over, a 5 day load of Sams cum wanting to leak out of me onto the beach towel. I held my legs together so I looked like I had a pussy. People were watching us, I guess hoping for a second show. By the way, Sam after he was done, told me very loudly that it was one of the best buttfucks he's ever had. So everyone knew I'd been buttfucked in front of them in public, on the beach.

After a few days, I got used to the fact that most of the time he wanted to fuck me out in public. It was that type of resort. One day he had me open, my little clit only about an inch long in my pubes, and made me walk around like that, then he fucked me again. He shared me with three married men in front of their wives, and two gay guys. That night, he had me bent over the dresser, standing behind me fucking me and the maid walked in. She just stood there watching, I wasn't in make up or anything. She talked to me like a friendly younger female friend before, but now she saw I was a guy and a guy letting an older man wearing a wedding ring fuck me in my ass.

I'm home now, I got my friend with the really nice, thick cock to come over and spend the night. He fucked me four times in one afternoon and evening. Then again in the morning before work.