"I've got an idea what to turn into!"
"Huh?" Alyssa looked down at you in confusion, before you shifted your bikini top body to unlatch your straps, flying off her breasts. Once your fabricy body landed in her outstretched hands, you morphed near-instantaneously into the smooth, squeezable yellow form of a rubber duck. "Oh, that's smart!" she giggles, giving you a quick squeeze, "Nobody will think anything of a little rubber duck bobbing about in the water. Heck, I could just lose you in the hot springs for a while, give you plenty of time to admire people that way!"
"Really? You'd do that?"
"Well, first, let's plan this out..."
After a few minutes of planning, Alyssa walked in, wearing only a white towel that she quickly discarded upon entering the water. She then let go of you, letting your form bob along the gentle waves of the hot spring. Already around you you could see many a lady, all casual about their states of undress as they soaked in the steam. The girl you came in with had to stifle her giggles, no doubt imagining the look on you face, ogling everyone around you. She even got into it herself, fiddling with her breasts in full view of you, and even turning around so that her butt poked out of the water—this even smacked you at one point, and that squeak might as well have been caused by you and not your form from how flustered it made you!
After an hour though, as planned, Alyssa decided she had enough of the hot springs and left, making sure you got a good view of her ass leaving the pool before she wrapped the towel back around and entering the changing rooms. With no more clear owner around, the girls that entered afterwards just assumed you were a part of the spring, and they began taking advantage of it! You got hugged against a number of ample bosoms, a few bumped you against their navels in lieu of tennis, and a few even shoved you beneath the water to watch you pop back out, giving you tantalizing views down below in that brief moment. Not to mention two ladies taking it a step further and sitting on you, letting you admire their asses alongside the oddly-delightful desire for buoyancy. The ladies there were quite a variety, from Asian teenagers with long hair that tangled you, to a Latina girl launching you nearly out of the water with a booty shake, a dark-skinned BBW rising up to briefly hold you in her cleavage, among other girls of all shapes, size, and age. Combined with the heat, it was practically heaven!
Unfortunately, it had to come to an end at some point, and as the sun dipped below the horizon more ladies were leaving the hot springs then arriving. Maybe there's an evening crowd, but this group has been more than delightful for you. So, as you and Alyssa planned earlier...