You forgot something important, but Amy has an idea

You spend a second staring at the swimsuit Amy is holding up to you, a sinking feeling growing as you realize something. You know the look on Amy’s face to mean she’s about to make some crass joke at your expense, so you cut her off with the bad news.

“I forgot my swimsuit.”

Amy’s grin fades, and she stares at you a second longer, before frowning and crossing her arms. “Dude. I know this wasn’t your idea and all but that’s a pretty lame excuse.”

“I’m not lying!” you say, gesturing down to yourself. “Did you see me bring anything but what’s on me?”

“...Nothing on under there?”

“No! I mean, wait, yeah, but not trunks, just y’know, normal uh, underwear,” you trail off, flustered.

“Well, what the hell dude?! What did you think we were going to be doing at a lake?” You notice a few people who are just hanging out on the couch starting to look your way, and you start talking in a whisper, hoping Amy might follow your example.

“It’s not like I didn’t think we’d be swimming, I just... it slipped my mind to grab one. I was nervous, okay?” You glance down at the floor. “I was worried enough about how I’d look just walking in the door, I wasn’t thinking about anything else.” Amy is still frowning, but she eases up a bit, and starts to think. Now, being friends with Amy as long as you have, you learned to recognize certain expressions she made regularly. Right now, she was looking of into the distance, milling something over, and the corners of her mouth were slowly twitching upward into a grin. The thing you don’t enjoy about this particular look is that she was having an idea. An Amy kind of Idea, with a capital ‘I’. The kind of idea that meant things were about to get a lot wilder. She meets your eyes, her grin an upside-down reflection of your concerned grimace, and before you can speak she pulls you into a side room.

“Amy—“

“Just hear me out, okay?” Amy’s smile is wide now, and she tosses her bag onto the bed in the room you’re in, apparently a guest room. “So you don’t have a suit; what’s the big deal, right?”

“...I just don’t go swimming, then. Sounds good, I mean—“

“Oh no no no, we’re still gonna go swimming,” she says with a grin and, sticking a thumb into her waistband, waits for you to get her meaning.

“You mean— skinny dipping?!”

“I mean, not technically, that’s if we were gonna go full-on naked. Which, I mean, we could give that a shot but—“

“Are you crazy?! I didn’t even really want to be here in the first place, and now you want me to run out there—“

“In your underwear, assuming you were telling the truth about wearing any. And not just you,” she says, tucking her bikini back into her bag.

“...You’d really do that?”

“Why not? Sounds like fun, and if that’s what it takes to keep you from running back to the car or hiding in some room with the lights off, then that’s that!”

You blush a little, feeling your heart race at the ideas Amy is putting forth. The two of you stripping down to your skivvies and walking out in front of a group of your peers, to join a bunch of them in the water, at a party being held by one of the most popular people in your senior class.

“S-so what? We just walk out there all casual about it? It’s gonna be pretty obvious we aren’t wearing actual swimsuits,” you say and pause a moment. “I can’t believe I’m actually thinking about this...”

Amy’s smile remains as wide as it can be as she puts a hand on your shoulder. “Listen bud, if you really don’t want to do this I can’t **** you. But... might be fun to get a little wild, right? And as for your question, we can try that if you want, but if you aren’t feeling confident we can try and make a break for it right? Just jump right in before anyone gets a good look.”

You weigh your options. Make a break for it and hope people think their eyes are playing tricks on them? Walk out acting like nothings out of the ordinary? ...come to your senses and call the whole thing off?