Request: a party game where everyone consumes the same food/drink, but a random one has an aphrodisiac in it, and then the "victim" has to try to hide their symptoms until the others notice and gather around to relieve them :3
There are enough people packed into the space that any given person doing something isn't immediately obvious, but Cady is paying more attention to the people than to the conversations, so she's the first to notice the way Sally is rocking back and forth, just a little, against the couch arm she's perched on.
It's not much, still subtle, but she definitely starting to hump it, dragging herself back and forth on it to get some friction and some pressure on what is no doubt a puffy little clit.
Cady watches her for a while, just for the entertainment of seeing how hard Sally is trying to hide her growing need, but eventually she heads over.
"Looking a little needy there," Cady says.
Sally bites her lip, flushed and bright-eyed and panting. "I'm--I'm fine," she mumbles, which would be more convincing if she weren't fully grinding on the arm of the couch now.
"I'm sure you are," Cady says patronizingly. "That's why you're humping the arm of that couch like a horny little slut, is it?"
Sally whimpers. People are starting to watch now, realizing who this month's pick is, but as first identifier, Cady gets first dibs.
"Why don't I get you out of this shirt," Cady says, reaching forward to start unbuttoning Sally's shirt, "and if you still don't need anything by the time I've gotten your tits out, I'll assume you're telling the truth."
"Oh god," Sally breathes, hips working harder as she openly works towards an orgasm now. She's not even bothering to hide it anymore, not that she probably can. The aphrodisiac builds and builds until it's out of the bloodstream hours later, making it a perfect choice for these games.
Sally's shirt gets handed off to someone, and then her bra, and Cady takes the opportunity to watch Sally's big tits bouncing as she humps her way to her first orgasm.
And then Cady yanks Sally forward so she can shove Sally's panties aside and fuck two fingers into her leaking cunt, and someone else starts sucking on Sally's tits, and Sally gives in to her need.