It's barely been a month since she broke up with her NFL player ex, but Hayden Panettiere's already got her hands on another man's kielbasa ... ex-BF Wladimir Klitschko ... at least that's the way it seemed at the airport today ... with her adorably girly giggle fit.
Fact: the 6'6" Ukrainian World Boxing Organization champ dropped 5'2" Hayden off at the airport today in Florida, where he lives.
Fact: When Hayden landed in L.A. she giggled like a schoolgirl when we asked her about Wlad -- insisting she and Wlad are "just good buddies."
Fact: THEY'RE OBVIOUSLY BONING AGAIN ... probably.
You'll recall, Hayden and her ex-BF Scotty McKnight -- who played for the Jets before he was cut last summer -- called it quits back in December.
BTW ... who gets off a 5 hour flight and looks that hot?