'Bachelor' Alum Corinne Olympios Doesn't Buy Colton Underwood's a Virgin

Corinne Olympios isn't buying what Colton Underwood is selling on this season of "The Bachelorette" -- insisting the ex-football player's already swiped his V card.

The villain from Nick Viall's 'Bachelor' season was in Venice on Monday when she weighed in on Colton confessing to Becca Kufrin that he's a virgin. He still got a rose, but Corinne thinks Becca got taken.

First off, she says Colton's too hot to still have unwrapped goodies. She also says his so-called confession is one guys use all the time for sympathy. That said, she thinks it's hurting him more than helping. He did get eliminated on this week's episode, so ... Corinne might've had a point.

As for whether the jock has what it takes to be the next 'Bachelor' ... Corinne scoffs and takes a shot at all of Becca's suitors this season. Bitter ... table for one?