Steamy Stars Heating Up In The Hot Tub!

It's gettin' chilly out there, so it might be time to take a dip in the hot tub ... and that's exactly what these steamy stars did!

Kim Kardashian, Lindsey Shaw, Greer Grammer, and Kelly Gale are just a few of the celebs that took full advantage of the jacuzzi ... shinin' like a diamond while soaking it up!

Kylie Jenner and her bestie Yris Palmer donned their shades with their all-black bikinis, taking a quick dip in the hot tub.

"EastEnders" actress, Maisie Smith threw on a 2-piece before gettin' in the hot water -- but she still might've been cold, hence the furry hat and gloves.