I held her head tighter trying to force my cock deeper into her mouth with each descent she made. She reached to tickle my balls, I didn't want it to ...end but I needed to cum so bad already. I was breathing hard now, holding the muscles tight to keep from releasing, savoring the pleasure my young sister was giving me. I felt a little pre-cum spray from my cock, then she sucked harder and I had to give up. "I"M CUMMING, I'M CUMMING OHHHHHHHH", I moaned. She pulled back keeping her lips firmly. He was fully aware of the attention he was getting, the corners of his mouth curling with amusement as he lapped it up. As he spotted me, he shot me a grin, his eyes looking me up and down. I wondered if his mind had gone to our first encounter together at the spa, the first night aboard when he'd seen me in a very similar bikini. His cheeky grin suggested it had. Settling in on the lounge beside him, we chatted for a while before deciding a swim was in order. Stepping into the cool water. He explained that they were coworkers. He pointed to the Latino and said “This is Daniel and that is Steve. “But Joe how did you know? You never told me that you’d want something like this too! Bill‘s voice boomed out “Shut up slut, I did not give you permission to speak. Joe is the one that set this up. He knew you wanted something different and he came to me because he’s heard you talking about me in your sleep. You gave him the idea to treat you like a slut so that’s exactly what we’re going. Though my breast were not really big i did have pretty big nipples that were super sensitive and would stay hard almost constantly due to the rubbing caused by the soft cotton of my bra. By the time you reach the age of 12 you tend to notice the fact that boys quit avoiding you and if you really wanna be blunt about it start paying you lots of attention. Of course i knew from my study of the anatomy and talking to different people that this attention was mostly given with the hopes of them.