Believe it or not, Blake Lively isn't my favorite Gossip Girl (that honor goes to Leighton Meester), but I've got to admit it; nobody fills out a pair of tight jeans like Lively does. Here she is at the Gossip Girl End-of-Summer Hamptons Bash giving the majority of other leggy/booty celebrities a run for their money. Great legs, pretty face, nice tush… looks like Leighton Meester finally has some competition.