Barry again

Barry walked into a bar and sat down next to an extremely gorgeous woman. The first thing he noticed about her though, was her pants. They were skin-tight, high-waisted and had no obvious mechanism (zipper, buttons or velcro) for opening them. After several minutes of puzzling over how she got the pants up over her hips, Barry finally worked up the nerve to ask her.
"Excuse me miss, but how do you get into your pants?" he asks.
"Well," she replied, "You can start by buying me a drink."