Peter Horton's character was killed off on "thirtysomething," but the actor was seen alive and well at a Los Angeles restaurant with Rosanna Arquette recently. People magazine quoted several sources as saying they were "full-on making out" but a spokesman for Arquette says there's nothing going on.

Horton, who is usually seen with model Jean Pelton, says he dined with Arquette but also denies there is a romance.