Hayden Panettiere in Bikini

Hayden Panettiere's latest bikini pictures come straight from Miami, where the young actress spent New Year's Eve, accompanied by her usual entourage of friends and relatives.

Needless to say, among these was Hayden's new boyfriend(?), Wladimir Klitschko, a Ukrainian heavyweight boxer who has over 50 wins in his career opposed to just 3 losses. Wladimir, who is 13 years older than Hayden, despite his scary looks, is an avid kyte-surfer and known humanitarian, and the two seem to have a lot in common.

Both the Heroes actress and the boxer were in town for Lady GaGa's New Year's Eve party at the Fontainebleau Hotel in Miami Beach, where they got very cozy together.

Hayden Panettiere found kissing a girl "exciting".

The 20-year-old actress had no problem locking lips with Madeline Zima, who plays Hayden's character Claire Bennet's roommate Gretchen Berg on US TV show 'Heroes', as she thinks it's something lots of girls do.
Hayden said: "It's very exciting! When you are young, you experiment and you have fun. It truly is a person that she just falls in love with, because she fulfils her and she is her best friend."
Hayden was so keen to shoot the sexy scene, which aired in America last night (12.10.09), she suggested it to script writers.
She explained: "I kind of threw it out there. The writers put you in relationships and I was like, 'Can I just be with a girl or something? Let's do that.' So they took it and ran with it."
Hayden has previously spoken about her own lesbian experiences, admitting she "experimented" with her female pals when she was younger.
She said: "It's great to be single. It's great to have boyfriends. Or girlfriends. There are occasions when you kiss your best friend growing up, having fun and goofing about. Like perfecting your technique."