Porn Valley- Porn star JENNA JAMESON is often left embarrassed during the filming of her adult movies, because she sometimes falls over while having sex in a variety of tricky positions.

The busty actress is rarely filmed in bed, and normally has to perform ambitious love-making techniques – which is when accidents occur.

Jameson says, “It’s always embarrassing when you fall. I remember once in JENNA LOVES PAIN, they had me in this weird position in heels and I slipped on some spilt baby oil.

“I fell right on top of a girl and dislocated her shoulder.

“It’s incredibly hard because you have to mind everything. You have to make sure you’re holding your face correctly, you’re holding your body correctly. You’re balancing on these huge heels and usually they have you having sex in a place you wouldn’t normally have sex.

“We never have sex on a bed. I usually end up strapped to a leather horse or something.”