Squat machine

Nancy led Lauren over to the assisted squat machine.

"It's obvious from your legs and butt that you don't do many squats." Nancy said. Lauren gasped, though it was true.

"So, we should start here."

Nancy guided Lauren so the bar of the squat machine rested on her shoulders. Then Nancy pulled it off the rests. Lauren groaned as the weight of the bar pressed down on her shoulders, forcing her into a deep squat. All the men working out stared in amazement. Lauren's minuscule bikini disappeared up her ass so far it covered nothing, exposing both her quivering, huge cheeks pointed eagerly out at everyone. Lauren groaned, unable to lift the weight and stuck in this compromising position...