The next day they were getting ready to go to the beach. Sean, wearing the bikini bottom on his female half, was grumbling a bit.
Suddenly he heard Jay, who had snuck up behind him, say "turn around."
Sean turned around and Jay was pointing the Chronivac at him. In a second Jay had activated it.
"I needed one more change," explained Jay, "I made you a bit bi-sexual and increased your general horniness, but you probably won't notice that."
Before Sean could object Jay spun the Chronivac around and announced, "Let's make this a challenge, Sean! That simple black bikini you are wearing could easily be a Speed-o... To encourage you to experiment with wilder bottoms, I promise that I'll wear that top that goes with the bottom you choose to the beach."
Jay hit a few commands and watched in excitement as pretty large C-cups grew from his chest. Covering his chest was a simple black tankini to match the black bikini bottom Sean was wearing. The tankini covered up Jay's smaller waist and now womanly abs. Jay's shorts became a simple black set of trunks. Unbeknownst to Sean, Jay gave himself a slightly larger package and his trunks were set to stay just tight enough to make his package obvious.
Jay encouraged Sean to try on just about all of his seemingly infinite wardrobe of bikini bottoms.
One lacy purple thong bikini gave Jay even lacier purple top that had a heart-shaped hole for his cleavage, and even Jay's purple shorts seemed a bit lacy to match.
A very tight, hot pink string bikini barely covered Sean's pubic mound and threatened to give Sean a very noticeable camel toe at the slightest provocation. Jay ended up with hot pink shorts and a string top with a very, very small triangle that barely covered Jay's large nipples. As he became aroused, his nipples very noticeably tented the small triangles of fabric leaving a small noticeable ring of nipple flesh out in the open.