Go to the bar for a drink.

You head over to the bar. You're thirsty. You order a vodka and orange juice. You sip at it, leaning on the bar, your arse pressed out, presenting yourself. You know people are watching.

You jump as a hand squeezes one of your cheeks. You half turn and see it's the muscle bound guy you saw earlier. Seems he doesn't have a concept of manners. He squeezes hard, kneading your butt in his grip and you give a little yelp. He leans over to you. "Like that? Want some more?"

As he speaks, his hands slide under your skirt. He roughly gropes at your mound. Your knees weaken and you gasp. You can feel yourself moisten. So can he apparently. "Ahh, seems you do want more. I'm going to give it to you. Come with me."

He grabs you by the arm, dragging you roughly away from the bar. Fear stabs through you. You know you want sex, but you don't seem to be getting a choice here.