Lena Dunham's Memorial Day outfit? Boots and a bra

We all know Girls creator and star Lena Dunham has no problem showing off her body in various states of undress. Honestly, her boobs are practically another character on the show at this point.

So, no surprises that her choice for a Memorial Day outfit was a skimpy lingerie set, which she threatened to wear to dinner with a pair of boots -- and a smile.

We assume that didn't actually happen ... but with Lena, you just never know. Meanwhile, her musician boyfriend Jack Antonoff decided to wear a medal to celebrate the holiday.