Watch: Lena Dunham's awesome reaction to kissing <i>The Bachelor</i>

Girls creator and star Lena Dunham has proven once again why she's one of the funniest women on TV, freaking out after getting a kiss from the latest US Bachelor, Juan Pablo Galavis. Watch her classic response above!

Lena appeared on Good Morning America to chat about the upcoming third season of her HBO comedy-drama, but got a little something extra from the buff, 32-year-old father-of-one.

It wasn't long before Lena Instagrammed a picture of Juan backstage with her co-star Allison Williams … and in true, adorable Lena style, she messed up his name!

"Allison met Juan Carlo aka DA BACHELOR and her eyes went red with passion," Lena wrote. She quickly corrected her mistake and posted a secret shot she took of him backstage with the caption: "UPDATE: his name is Juan Pablo and he's a delight. I can't even make a joke. It's confusing."

Girls season three airs in Australia on Foxtel's Showcase at 7.30pm on Monday, January 13. View the trailer below:

View slideshow: Behind the scenes on Girls season three!