Serena Williams & Lewis Hamilton Got 'Flirty' on Halloween Night

Serena Williams and Lewis Hamilton reportedly were spotted getting flirty while attending a Halloween party!

The 35-year-old tennis player and the 31-year-olf Formula One driver both were at the Heidi Klum Halloween party on Monday (October 31) in New York City.

PHOTOS: Check out the latest pics of Serena Williams

“They were super flirty. They didn’t leave each other’s side the whole night,” a source told Page Six.

Serena dressed up in ’80s workout gear while Lewis was in costume as The Joker. See photos of them arriving at the party in the gallery!