I was sort of aroused when I started to put on the swimsuit. I stepped through the leg holes, and pulled it up to my crotch, tucking my dick onto my tummy in process. I adjusted a little, and noticed my dick felt almost hard, but was in fact shrinking. Suddenly my nipples got hard, swelling up and expanding. I felt my ass growing. I knew I had to finish putting the swimsuit on, so I grabbed the top, tied it at the end and put it on. I was really loose... For about ten seconds, and my tits swelled up to basketball size, snapping the top part taunt. Pulling the bottom part higher up, causing the back to snap up my ass, thong style. My balls shot up inside me, causing me to loose breath for a second, and black out.