Here seems as good a place as any

My dick wasn't going to go down without some help, so I freed it from the confines of my bikini, I pulled my panties to the side and my sizable dick came free. It rigidly pressed against my body. I swam a little ways back to shore, so that I could comfortably put my feet down on the sand beneath me and grab my dick. I didn't fancy the idea of trying to tread water and jack off simultaneously. Once I was close enough to shore to put my feet down comfortably, my chest was above the water. I was still some ways from the shore, so people would not be able to see so clearly, but there were people in the water not far from me. Further, looking down, the water was very clear, anyone within a meter of so of me would see my big dick sticking out of me. Still, I couldn't go back to shore like this. So I turned my back to the beach and reached down and took my dick in hand. I started to stroke it. The feeling of doing it in public was electric and exhilarating. I could hear people around me, which only turned me on all the more. A few strokes in and a soft beach ball hit my back. I turned in surprise, dick still in hand and saw a hunk of a guy moving towards me to retrieve his ball. He was toned and tanned, wearing only a small pair of speedos, which did little to hide the package beneath. I picked up the ball with my free hand, never taking the other one off my penis, still stroking. I called out while he was still too far to see what I was doing. "Is this yours?" He called back, "Yeah..." He seemed to have seen me for the first time and he drank me in. I threw the ball back to him and it just hit him in the chest, which seemed to wake him up. He stammered "Oh...thank you." He grabbed the ball and threw it back to his friends who were playing further away. He then said, "Do you maybe want to play with us?" I looked him up and down then a small devilish grin spread across my face. "Oh, I'm not sure I could handle all of your friends." I gave him a sly wink and my cock a slow wank with my left hand. After a moment, I looked him dead in the eyes and said, "But we could play a little out here if you want."

He was taken aback at first by my forthright behaviour, but he caught on quickly. He moved forward, he was moments from discovering my secret, but I made no move to stop the discovery. I kept up the slow wank. He stopped about a meter from me and his eyes tracked down my arm to my hand and then my rock hard penis. He tried to speak, "A...a..dick, you have a dick!" I knew I needed to take control. "I do yes, I have a hard thick dick and I need to get off." He was flustered and blushing at my confidence. I moved very close to him, my cock on centimetres from his leg. I took my left hand off my cock and reached back and released the straps on my bra, showing off my ample tits. I had his attention again. I hooked one of the straps to my bikini bottoms, so as not to lose them. I spoke quietly to him, "Just take in my ample boobs if it makes you more comfortable. I looked down as he stared at my chest, his speedos couldn't contain his dick. I moved my right hand to my breast and squeezed and I ran my left along the shaft of his dick. He gasped.

"Let's let your beast out, he looks like he needs it", I moved forward, my chest brushed up against his and my cock poked into his. I grabbed either side of his speedos and pulled them down to just above his knees. His hard dick popped free, it was a nice 8 inch dick, veiny and girthy, something to really get your hands around. As his dick came free, it rubbed against mine. I knew he was not comfortable with my dick, but he had not fled yet. I grabbed both our dicks together and started to stroke us. I whispered to him, "You can play with my tits". He was willing, focussing on my chest while I played with him. He stifled a moan as I expertly twisted his dick with my had. After a moment, he looked at me and said. "So, are you, uh...a shemale?" I took in the name, pondered a moment aware of the implications. I responded, "It's not the name I would choose for myself, but yeah it's what some people call people like me. But the difference is, I was born this way." He seemed a little suprised by my answer, but never pulled away.

My devlish smile returned to my face. "I bet you'd like a blowjob wouldn't you?" He grinned back, then a little apprehensive, "Underwater, wouldn't that be dangerous?" I didn't respond, I just took a big breath then went under the water and took his dick in my mouth. He was pretty big, but I've already sucked a fair amount of dick by my age and I took much of him in one motion. I clamped down with my lips to create a seal, then moved back and forth. I held myself down for about a minute before I came up for air. He responded, "Wow, that's great." I sucked in some air, then instructed him. "Okay to make this work, I want you to hold my head down on your dick, then let go when I tap your hand. He nodded. I dove back under and took his dick back in my mouth. I knew I could hold my breath for about 3 minutes comfortably. I had trained my lungs from the various face fuckings I had received up till now. I then proceeded to really go to town on his cock. His holding me have me the friction to really pull him into me. I had to dive up for air every so often, but shortly after, I was back down gagging on his thick veiny cock. The process was difficult, but such a turn on. I was leaking precum.

I went down once more and I knew he was close to coming. He was really fucking my face now. It had been 3 minutes and I need to come up for air, but he was so close he held me. I tapped his hand, still holding. I realised he was not thinking straight and I would be held too long. I had to either **** him to let me up or set him off. I kept sucking him. 4 minutes, my body was quaking. It got just past 5 minutes and my mind was going numb. I was close to passing out, but he kept fucking. I had one last thought, I stuck two fingers sharply up his ass and it sent him over the edge. He started blasting cum down my throat, then he released me. I burst out of the water gasping for air. He realised what he had done, keeping me down. But even as I gasped for air, I was shooting wads of cum from my dick, I had experienced my first Autoerotic asphyxiation. I didn't know how I felt about that, but it did feel great to breath again and to cum hard.