Miley Cyrus raised a few eyebrows at rocker pal Wayne Coyne's Christmas party in Oklahoma on Saturday (20Dec14) by kissing a girl friend and posing for a series of topless photos she posted on Instagram.com.

The outrageous pop star donned nothing but marijuana-leaf pasties to cover her nipples and the same glittering silver wig she wore for her recent appearance with Coyne's Flaming Lips on U.S. Tv show Conan.

She also passionately locked lips with new pal Jaci Wells at the art gallery bash in Oklahoma City home.

A collection of the shots taken at the bash have been posted online.

In one photo, the singer appears to be wearing a sexy elf outfit, while a man in a Santa outfit clasps her exposed breast.

After the party, Wells told Us Weekly magazine, "She's a ton of fun and super down to earth. It was really comfortable being around her. (It was) definitely (my idea to kiss Miley). You can’t meet Miley and resist the urge to kiss her."