She stays calm

Taking a deep breath Olivia centers herself and then continues to unload the video games in her arms, giving you an unobstructed view of her panty clad arse for a few more moments until her arms are finally empty.

Finally with her arms clear, she takes a careful step back from the shelves, a little hampered by the trousers now at her ankles, but remains on her feet.

You watch as she bends over, pulling her trousers back up her legs, but lets out a silent curse when she notices that the clasp has completely given out. Sure she's currently completely covered, but with nothing to do up her trousers the moment she lets go they'll be around her ankles again.

A glance over the shelving units tells her that the pimply faced kid still isn't looking this way so at least she has a little time to try and work out what to do.