Contact Music says that Riley Keough, daughter of Lisa Marie Presley and granddaughter of Elvis, swapped spit with Ashlee Simpson’s ex.

ELVIS PRESLEY’s teenage granddaughter has a new man – and mum LISA MARIE PRESLEY approves. Model RILEY KEOUGH and pop star RYAN CABRERA were spotted kissing up a storm at trendy Los Angeles club Metal Skool on Monday night (04DEC06) – and chaperone Lisa Marie happily stroked her daughter’s hair while the new couple got romantic. Keough, 17, and the 24-year-old ALWAYS COME BACK TO YOU hitmaker were also joined by the teenager’s new stepdad MICHAEL LOCKWOOD as the Presley’s checked out Metal Skool’s Monday night show at the Key Club.

Of course Lisa Marie approves. She’d better. Michael Jackson was briefly Riley’s step-dad. Lisa’s lucky Riley doesn’t bring home The Zodiac Killer.

Also? Stroking your daughter’s hair while she makes out with a guy? Creepy.