BRETT RATNER at the HIP-HOP Summit Action Network party Los Angeles, California 18.09.04 and LINDSAY LOHAN at the Nickelodeon Kid's Choice Awards, UCLA, Los Angeles, California - 01.04.06

The actress/singer and the RUSH HOUR director were spotted enjoying each other's company at a recent party at Los Angeles' Dime club.

One reveller tells American magazine Life + Style, "They were all over each other, touching and caressing."

At 37, Ratner, who was most recently dating tennis ace SERENA WILLIAMS, is almost twice 19-year-old Lohan's age.

After splitting from WILMER VALDERRAMA, Lohan has been romantically linked with a string of hunky young stars, including JARED LETO.