An unofficial contest: Translating what Lena Dunham was talking about

This is an unofficial contest, because there’s no prize beyond the satisfaction of trying to figure out what one of the more talented and morally lacking voices of the young generation meant in a tweet:

Can’t stop thinking about this twelve year old genetic male with a light untended mustache I saw walking in Soho the other day. He needs me.

— Lena Dunham (@lenadunham) August 27, 2013

What in the world does Dunham mean by talking about a “twelve year old genetic male”? Is she referring to what we used to call an adolescent boy? And if she is, is she making a sarcastic pop-culture reference to the modern world of identity politics (which Leftists have untethered from biology) or is she perfectly serious? Oh, and here’s another question: Why does he need her? Is she referring to the endless stories about morality bereft female teachers in their 20s, 30s, and 40s who keep cropping up in the news because they’ve seduced adolescent boys entrusted to their care, or is she just promising him that she can teach him how to wax his ‘stache?

Help me, please. I’m lost in this modern world of ours.