Well, I was humming right along.
Had sweet Jessica in the men's room. Had her take care of the pressing need and managed to get rid of her panties and the bra that she actually needed to support her treasured chest so that she was standing in a skirt and a shirt she was in the process of buttoning up when five "thugs" burst in with a skinny, young looking girl.
I managed to subtly point out that the girl surrounded by eight legs was actually a very young looking twenty-four instead of the fourteen her petite body looked through dialogue and moved on to have Jessica watch the beginnings of a hot and heavy gangbang with her face, and her breasts, pressed against the door of the stall.
The leader of the gang, a towering six and a half foot, four hundred pound giant of a man caught her and pulled her from the stall by her hair.
Then, I think I may have taken a departure from what you were hoping for.
The, much smaller, man who was watching the door came back in as the leader ripped her shirt open, spilling her bountiful bare breasts out for the room to see while the other three continued to pleasure and be pleased by the only other woman in the room. Worried that what was happening might be rape, the smaller man tried to stop it, even threatening the much larger leader of the gang.
When he managed to get her to admit that she wanted to stay, he went even further and forced her to beg for him to "Get that cock out or get the fuck out and get someone else in here who will!"
Anyway, I'm still working on it. I just wanted to pop in and let you know not to get your hopes up too much since the leader would be perfectly willing to rip your clothes from your body with or without your consent, but this Galahad shows up and seems intent on making you admit just how much you want it and making you beg "like some dirty little cock slut whore wanting to be taken right here on the tiles of this disgusting bathroom where men come to piss". (Sorry, his words. Not mine.)
Ah well. I'll go ahead and finish it and submit, but hopefully some other writer will answer your plea with a better fitted effort.