Making the Team/Mary and Stacy, stripshow, Both of them
It occurs to you that no matter what you do, Stacy is in it for now as well. And this is much better than what you had feared, so perhaps it would be best if she is introduced to the whole thing in a somewhat more tame manner. So making a decision you shove her softly forward into the direction of the middle of the room, where Mary is by now looking at you like she is asking for help. Tough break for her, you're not here to help her... Well, in a manner you are, you are helping her getting accepted by the boys, right? "Go and help out your sister, the boys will love it."
Not sure what you mean, your youngest sister looks at you with big eyes, clearly nervous, but someone grabs her hands and pulls her forward to the table, then roughly shoving her onto it. "And here is our second star of the day, the spectacular Stacy!!" he yells and the group applauds and cheers her on as she climbs onto the table. Within seconds both are dancing now, though you can hardly call it dancing, more like swinging to the rhythm of the music and moving their not really pronounced assets. Stacy learns quickly that she is supposed to swing her ass around and does so with vigor, giggling and smiling as she does so. Sooner than later she also understands from the catcalls and cheering that she is supposed to strip and she undoes the clasps of her bib overall and it slides down her small frame, leaving her in her disney panties and her striped shirt.
Damn, you wouldn't have thought it possible, but the sight of your underage sisters dancing half naked on a makeshift stage makes you really horny.
"Now kiss!" someone yells and several agree, catcalling and everything. Blushing but smiling, clearly not really understanding what is going on, Stacy does so. That means she leans forward and puts a small kiss on the cheek of her sister, who blushes a deep crimson by now.
"No, do it for real!"
"On the mouth!!"
"And with tongue!!"
What happens now?