Blake Lively Smooches on Set (PHOTOS)

Sorry Penn Badgley, but Blake Lively’s on-screen romance is heating up. Gossip Girl’s blonde bombshell was snapped in a passionate lip lock/embrace on Monday with her new fictional boyfriend, played by Mad Men’s Sam Page. Don’t worry, they’re just acting!

Click through for more shots of Blake’s big kiss and let us know in the comments- do you think she and Sam make a good couple? For more smooching stars, click here.