Arnold Schwarzenegger

 Financial entrepreneur Jeremy Frommer purchased storage lockers once owned by deceased Penthouse founder Bob Guccione and found lots of unpublished intimate photos of celebrities, including Schwarzenegger, Madonna and Lauren Hutton.

YouPorn.com is keen to acquire the image of the 'Terminator' star - which shows him naked and in throes of passion - and has offered at least $150,000 for the picture.

According to gossip site TMZ, YouPorn.com said: "Let's face it. The real value here is in Schwarzenegger's 'Schwanz'. "

It is unclear whether Frommer will accept the money.

It is also not known who Schwarzenegger is having sex with.

The 65-year-old star is currently trying to win back estranged wife Maria Shriver after they split in 2011 after a 25-year marriage.

Just after they broke up, it was revealed the former Governor of California had secretly fathered a child with their housekeeper Mildred Baena.

Asked if he still believes they will get back together, he said: "Yeah. Yeah, absolutely. Maria and I are still in touch. If you've got kids, you'd better be in touch. But Maria and I have a great relationship.