After months of open canoodling with celebrity DJ Samantha Ronson, Lindsay Lohan has stopped playing coy about whether the two of them are in a relationship, finally confirming the news on (of all places) last night's episode of the radio show Loveline. And she wasn't even prompted by the harsh interrogation techniques of Dr. Drew, either! No, Lohan — who had the phone passed to her after Ronson called in to discuss her hospitalized friend DJ AM — was caught flat-footed after an innocent question by Dr. Drew's cohost, Stryker.Asked, "You and Samantha have been going out for how long now?" Lohan giggled and demurred, but Stryker pressed on. "Like two years?" he asked. "One year? Five months? Two months?" Finally, Lohan allowed, "A very long time." The MySpace pundit then accepted compliments on her relationship, eventually signing off in a bit of Italian that stumps the hosts (is that how lesbians talk?). Our congratulations go out to the newly confirmed couple. Stryker, you'd better prepare for tonight's inevitable Michael Lohan call-in. [Loveline]