Looking to cool off on a warm summer evening, Heidi Montag and Spencer Pratt were spotted grabbing some frozen yogurt treats at Malibu Yogurt last night (August 11).

The happy couple walked hand-in-hand as they passed the paparazzi, with Spencer chatting away on his mobile phone while Heidi just smiled.

And with Ms. Montag's Playboy issue hitting newsstands later this month for the whole world to see, she explained how hard she worked to prepare for the shoot.

"I worked out very hard for this. I worked my butt off. [Playboy] kind of had a vision ... and we brought in Matthew Rolston, who is a very well-known amazing photographer. So, it's more art."