Gosling's gone gaga for a Gossip Girl!

Sources tell the new Us Weekly that Ryan Gosling is "incredibly taken with" Blake Lively.

Fresh off her September split from Penn Badgley after three years together, the actress. 24, has spent some quality time with Gosling, 30, on both the East and West coasts.

"There a definite attraction there," the source adds.

Find out much more about this white-hot new twosome in this week's Hot Stuff video, as explained by Senior Editor Ian Drew and Basketball Wives star Jennifer Williams.

Watch the video now!