It looks like Whitney Port isn't wasting any time getting over ex-boyfriend Jay Lyon! Sparks are already flying between The City's Whitney and Lipstick Jungle actor Robert Buckley, an insider tells Life & Style.

The duo were both in Miami to host the Havaianas Spring Break event at the Shore Club on March 18. "Whitney and Rob hung out together all day. They were even holding hands!" an insider tells Life & Style. "There was definitely something in the air!"

But the passion really ignited at dinner later that night. "Whitney and Rob joined about 10 of their friends for dinner at Nobu. They got quite cozy and started making out like crazy!" the insider reveals.

To cap off the sultry evening, the two partied the night away! "They hit the town together after dinner." says the insider.

Juicy new romance or a spring fling? Only time will tell...

Photo Credit: Retna