Nikki Sixx Calabasas jewelery shopping Motley Crue

Could the Motley Crue bassist be buying something pretty for his "beautiful maiden"?

Here's Nikki Sixx stopping by Polacheck's Jewelers in Calabasas on Saturday, possibly picking up an Xmas gift for hot new girlfriend Denise Richards. Diamonds are a girl's best friend! I guess dating Sixx after Richie Sambora makes sense, right?