Short and simple: you're staying in a hotel when a Sci Fi convention is in town. There's a slightly timid knock on the door; outside is a young woman (my character) in a shiny skintight red catsuit.
"Um, this is embarrassing, but... could you help me with my costume? The zipper seems to be stuck, and my roommate's out."
She turns to show you the long zipper down the back of her catsuit.
The details are up for negotiation (so is most of the plot): it could be played as a light romantic comedy (your character is kind and helpful, and they hit it off as my character suffers further embarrassing mishaps) to something much darker (your character takes advantage of the situation to torment my character), and all shades in-between. Perhaps the characters aren't complete strangers (at the lighter end, your character had an unrequited crush on mine in the past; at the darker end, perhaps my character once did something that inspires your character to petty revenge).
It could also be reworked as your character helping mine zip up, and realizing that my character is going to be trapped in there without help.
In other words, I'm open to a lot of variation on the theme
I don't care what gender you are in real life. Please read my ons and offs.
My older story ideas are still open:An Earful of CiderJessica's CatsuitNew Year's PartyMultiple Ideas