Another split this year as the still sexy Denise Richards and rocker Nikki Sixx break up after only weeks of dating with each other. Apparently, they were not serious at all. And it looks like it's true as a rep from the Richards says they were never even serious to begin with and should not even be considered a big break up. Richards went out with him a couple of times and decided she was not interested. In any case, it’d be better for Richards to just spend time with her daughters more than withother men who could end up to be like Charlie Sheen.