This has got to be the cutest couple ever! Justin Long
and Kate Mara
are rumored to be in a "very new relationship" according to a source close to the couple. Justin, who once dated Drew Barrymore
and Leighton Meester
, has been seen arm in arm with Kate in NYC's East Village. Kate, younger sister to Rooney Mara
, took Justin out for his birthday on June 2nd and seems like they had a blast celebrating. They've also been seen watching the ...