Let's hope Charlie Sheen isn't on the slippery slope -- he's back to dating porn stars. His new arm candy is named Georgia Jones.

The 24-year-old moved into Charlie's L.A. mansion in October, and they went out as a couple for the first time last week on vacation in Mexico. Sources tell TMZ that he hasn't felt this strongly about a woman since his last porn-star girlfriend, Bree Olsen.

But there's one big difference with Charlie's latest flame -- she does only girl-on-girl action.