Britney Spears and Alli Sims have been hitting all the parties as of late.

Last night they got their party on at Winston’s and apparently spent LOTS of time in the bathroom stalls.

A source told Ok! magazine,

“I was in the restroom at the same time as Britney and Alli, who made sure Brit was always aware of the location of an available stall. At one point, Brit even asked me which way the stall was because she ?really had to go.? She asked, ‘Is the stall this way or that way?’?? I pointed her in the right direction. Britney took care of business without ever letting go of her red lollipop.?”

When Britney and Alli were in their booth (in a back corner by the DJ booth) they drank Grey Goose cocktails and sucked on red lollipops. Of course the DJ threw on her new single, ‘Gimme More’ and after much coaxing from Alli, Brit jumped up and bumped and grinded with some male party goers, who were obviously thrilled.

Around 1:30am, Britney was in the bathroom yet again, and started chatting with one of the female bartenders. Britney told her she liked her ‘tits’ and that hers were ’saggy’. She then asked the bartender to switch outfits with her. The bartender was wearing a low-cut black dress. Britney was wearing a french maid costume. After switching the bartender went back to work telling people that she was wearing Britney’s costume and that Brit had made her wear her bra as well.

Do I feel an eBay auction coming on?

Source