Seems alright for now...

After a few more agonizingly long seconds, the other swimmers return to as they were before, leaving you and Amy with just a last few odd looks and murmurs before going back to swimming, splashing, and mulling about in the water and on the docks. You stand there a second longer, afraid that moving at all will somehow totally blow your cover, until Amy nudges you under the water, and you jump slightly.

"See?" Amy starts, brushing a wet lock of hair out of her face, "what'd I tell you? Just play it cool and no one will know we're out here in our--"

"Ssh!" you cut her off, but try to ease back when a few people turn their heads back towards you. "Keep it down, will you?"

"I'm just messing with you," Amy chuckles, "but way to keep cool, dingus." Amy kicks back from you, doing a light backstroke through the water, briefly showing off her cleavage as she floated back before she straightened back up and it was all hidden again; short as she was, when she moved back into deeper waters, the water was almost up to her chin. You smirk a little at this.

"Are you on your tip toes?" you ask.

"No, I grew half a foot while we were running down the dock," she says, rolling her eyes. "Me being short isn't exactly new grounds for comedy, dude. Can I help it if I grew in all the fun directions instead of just up and down?"

"All that fun is making you sink," you tease, lightly pushing her back. On her tiptoes she can't get enough purchase to stop you, and she starts treading water.

"You dick," she says, smiling, "if I'm about to sink, you're coming down first!" With a stroke forward, Amy grabs onto you and starts trying to dunk you under the water, circling around to grab you from behind!

"No!" you say, laughing, "you jerk!"

"You started it!"

The two of you wrestle and splash against each other for a while, laughing about it the whole time. It's nice to forget how nervous you were about being at the party in general, let alone being in the middle of that party in your underwear, even if no one could tell. Amy's good at getting people in a good mood, and in your case, the squish of her chest and stomach against you as she tried to cling onto you and push you around was just a nice little bonus to hanging out with a friend. A sexy friend. In her underwear.

Putting those thoughts aside, you notice other people around the lake starting to cut loose and roughhouse a bit as well. Some of the guys on the track team are making a game of picking up and tossing some of the cheerleaders into the water, while the shortest guy on the track team frantically tries to keep one of the women's basketball players from doing the same thing to him. Someone breaks out a few pool toys, someone else has a couple of super soakers now, etc. Rebecca even starts to get a little rowdy, sneakily walking up behind Candy and stepping on the strings of her bikini bottoms, causing them to come undone as Candy starts to stand up; you catch a glimpse of her bare thigh before she lets herself fall forward into the water, glaring back up at Rebecca, who starts laughing up until Candy re-ties the strings and starts climbing back up the ladder to chase her.

All in all, you're starting to feel pretty into the atmosphere, and you're getting some nice views out of it as well. Nothing bad could happen next, could it?