IF SHE’S A HOTTIE, NO POTTIE DEPT.: RYAN SEACREST’s quirks are a gossip gold mine, and now he’s confessed to what Brits would call a mind-boggling bog hang-up!

Ryan REFUSES to share a toilet with any woman!

Sharing his potty secret on LA’s KIIS-FM, the “American Idol” host got all flushed and actually admitted: “If I’m at a hotel with a woman, and I have to use the bathroom…I’ll go to the lobby!”

(Ladies, is this guy a catch, or what?)

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