'Girls' creator and star Lena Dunham may depict a lot of sex on her HBO show, but as she shared with her Instagram followers on Thursday, she wasn't the sexed-up teen you might have imagined. In fact, she was still a virgin at 19.

Dunham, 27, used the occasion of "throw-back Thursday" -- an informal online custom of posting old photos or other memorabilia on Thursdays -- to provide proof that eight years ago, she needed a little advice of the bedroom variety:

#tbt to that time I wrote a letter to Jamie Buffalino [sic], the sexpert in Time Out NY and he ANSWERED. Please note "I have a reasonable amount of sexual experience..." #2005 #virgin

She then posted a series of shots showing the print version of the column that included her question (which was basically "I'm still a virgin -- do I have to tell the person who winds up punching my v-card?") and Jamie's answer, which she called "generous."

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