Charlie Sheen’s ex, Denise Richards dating Nikki Sixx?

[HMG Celebrity News] – As if seeing her ex-husband, Charlie Sheen being sautéed by the press for hi-jinks with a hooker wasn’t enough fun, Denise Richards apparently has a new friend of her own – Sources say she’s dating Motley Crue bassist Nikki Sixx.

“They’ve been neighbors for years,” a source close to the couple tells Us. “They have a lot in common and are taking things slow.”

Denise, 39, is the mom to Charlie’s two daughters Sam, aged 6, and 5-year old Lola. The pair divorced in November of 2006 – and boy, was it messy.

Nikki, meanwhile, is a different story – Born ‘Frank Carlton Serafino Ferrana’ in San Jose, California, the 52-year old rocker is a recovering heroin addict, has survived two failed marriages [both to Playboy models,] from which he now has four kids, and he dated ‘Kat Von D’ for two years until they split in January.

The new pair, however, seemed very close as they shared breakfast at the Marmalade Cafe in Calabasas on December 12th.

“Nikki was telling stories, and Denise was laughing,” says an eyewitness.

Could this lead to something? The previous night (his 52nd birthday), Nikki even tweeted about a ‘special someone’;

“At dinner with my lovely family & a midnight rendezvous planned with a beautiful maiden,” he told 86,200 close friends. “A pirate’s life for me!”

So Denise and Charlie are over and done, and despite a brief reunion so are Nikki and Kat. Do you think this is a good match, or should one of them just head for the hills?…