GIRLS Gone Wild! Lena Dunham Makes Her Own Belly Bowl Shirt & Zosia Mamet Hits Up Jimmy Fallon (VIDEO)

Lena Dunham is a beautiful GIRL!

Just like most celebrities, and Americans in general, Lena was gearing up for Super Bowl Sunday this weekend.

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The GIRLS actress, who is frequently butt naked on her HBO show, teased fans by showing off a little mid-section skin on Instagram, captioning the photo: 

"Belly Shirt Bowl #whowon?"

We admire Lena's body confidence, and between the girly ruffles and sexed-up face and pose, we would definitely have to say she wins!

In the meantime, Lena's gorgeous GIRLS co-star Zosia Momet hit up Jimmy Fallon to celebrate her 25th birthday. 

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She told Jimmy that 25 "makes a girl think" and that she's is having such a good year, she has nothing to complain about!

Check out Zosia, and her surprising side-boob action, in the video below:

SOURCE: NY Daily News || Photo Credit: Instagram