Genius!

"I mean, it's stupid as hell, but it can't really go wrong, either!"

That... went better than you expected, honestly. You had a list of arguments prepared for why your 'plan' would work, but Cindy doesn't need convincing, apparently.

"Which leaves us with one small matter to resolve." You grin at Cindy. "We're going to need some cum. If only there was someone around to supply some, provided they were suitably stimulated..." "Well, yes, go right ahead. You can go to the bathroom if you want, but I wouldn't mind a show." "That, or," you offer, "you could 'lend me a hand', as it were."

"Oh, come on. I'm sure you're more than capable of handling yourself." "Tell you what, you do this for me, and you'll get to play with Mandy first once this is over." Cindy sniffs derisively. "Like I'd want that bitch anywhere near me." "I didn't say you should. You could make her do pretty much anything you like. With anyone. I suggest getting her to slobber all over professor Schmidt's wrinkly old cock and take selfies with it."

Cindy's eyes light up at the prospect. "Oooh! We could send her over to get gangbanged by the chess club! No, wait, we dress her up in one of those corny maid outfits and let the weebs have her!" "All of that and more, just one quick handjob away."

"Ok, well, why are you still wearing pants, then?"