Samuel L. Jackson refuses to go full frontal in films for a very personal reason

Samuel L. Jackson is the highest grossing actor of all time but even he has his insecurities on screen.

The actor has revealed he won't do nude scenes because he's worried about the size of his penis.

The 67-year-old star said he would ask for a "d**k double" before doing a full frontal scene in a movie.

Speaking to Howard Stern on his Sirius XM radio show, he said: "I might ask for a d**k double."

When Howard asked: "Do you feel your penis isn't big enough to show off on camera?", Jackson replied: "I don't know if it's… yeah. I don't know if it's formidable enough. My aura's so big, I don't know if my d**k is big enough to fill my aura."

His size isn't the only reason he rarely does love scenes in his movies because they're "extremely awkward" to film.

Samuel, who apologised to Naomi Watts for their love scene in Mother and Child, said: "You ask before you start, 'Where can I touch you? Where shouldn't I touch you?' Then you apologise for both reasons. 'I'm sorry if I get excited' and 'I'm sorry if I don't.' Because sometimes it just ain't happening!"

Nightmare.