Lena Dunham adopted a rescue dog back in January, and it ended up taking about five months for it to get fed up with her shit. The Girls star posted a photo of her ass to Instagram last night to show everyone that her dog, Lamby, bit her on the ass and drew blood. At least I think the dog drew blood, because otherwise that’s pretty gross that she’s wearing underwear with blood on it. But that might just prove how out of touch I am with the hipster culture, because blood-covered underwear probably runs a few hundred dollars extra at the thrift stores in Brooklyn, and skidmarks? Forget about it. You’d need to be starring in your own feature films to afford that kind of shit-stained used swag.