KIM Kardashian's sex tape a problem for her marriage?

KIM Kardashian's new husband, Kris Humphries, is upset about the renewed interest in Kim's sextape with R 'n' B singer Ray J.

"Kris obviously knows all about Kim's past and the tape but he had know idea the wedding would put this thing back in the spotlight," reveals a source close to the couple. "He's embarrassed for Kim and angry that people would want to keep watching it.

"He's even offered to buy the footage back for Kim but she won't have it. She's assured Kris that it will all be forgotten about again soon."

Kim received a $3 million pay off for the tape from Vivid Entertainment who own the rights earlier this year.