"I looked around. "You know, honey, it's just the two of us. No one else can see us back here. So if you want to swim or sunbathe in the nude, that would be okay." She still looked skeptical so I continued "If it would make you feel more comfortable to not be the only one nude, okay." I slid my trunks off. Her eyes widened and her face turned crimson as her gaze locked on my cock. She did eventually get naked and we had a wonderful afternoon together!"
"Luckily for us guys, we came at the same time and the girls were willing to break the tie with a fucking contest. The girls tied for the win in the fucking contest, as they came first, then my friend was next and I trailed only by a couple seconds. Everyone came, though, so in some sense we're all winners!"
"It's very nice, and it will come in handy with all the passengers who paid the optional Mile High Club Experience fee as part of purchasing their seats. There are enough that you're likely going to be having sex from the time I turn off the seat belt sign after takeoff to right before I turn it back on in preparation for landing!"