Here’s uber hot mama Hilary Duff doing some late Christmas shopping in Studio City the other day and giving us all an extra little Christmas gift with one hell of a bootylicious booty pop in a pair of skin-tight jeans… sweet baby Jesus! And as if that wasn’t enough to induce a drool-fest, she’s also busting out big time in her tight little sweater. Oh, and you know, she’s freakin’ hot, so… enjoy the photos and check out the rest after the jump!