They assume you've positioned yourself for their sake

"Would you look at that?" one of the voices says. "You think she knows we're here?"

Ss much as you meant to play possum you can't help but twitch at the sound of their voices and the other man says dryly, "Oh she knows. In fact the mum said the girl knew we were coming. She's just playing coy. Isn't that right, girlie?"

Realizing the futility of pretending to be asleep you turn your head, the simple movement made awkward by the fact you can't pull your chest away from the chair.

"I..." you stop, your mind at odds with itself.

"See? She's just a bit nervous."

"I dunno, maybe she's just scared." the second man said, a scrawny man but young.

The older one chuckled, wandering over to you. "I tell you what. You don't want us to fuck your brains out you get up right now."

Horny as hell, but frightened as well, your breathing speeds up at his proximity. You instinctively try to straighten, but it's impossible to pull the big bulge of breast through a one-inch gap in one motion. All that happens is that you raise your ass a little higher.

"See? She wants it. She just doesn't want to admit it. Women. Teases, the whole lot of 'em."

As the older man reaches down to his fly you know this is the last chance you'll get to stop things; maybe if you revealed your plight and explained they'd understand. Or take advantage.... You shiver at the thought.