Porn star JENNA JAMESON in LA

Lot of front ... Jenna Jameson

JENNA JAMESON has never been shy when it comes to her body, but I bet this was more than one admirer expected to see.

The porn star nearly spilled out of her tight top at a fan signing in LA.

Though some have remarked on her weight loss over the past few months... it is fair to say not all of her is so tiny.