It looks like the celebrity world is very small after all. The Real Housewives of Orange County's Lizzie Rovsek has made a shocking declaration when she admitted to once dating one of Jessica Simpson's exes.

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When prompted by Andy Cohen to spill the beans, Rovsek admitted to dating Nick Lachey both before and after his relationship with Simpson.

According to Us Weekly, Cohen recalled Lachey saying when visiting the Bravo offices a year back, "Oh my god. This woman that I used to date is about to be an Orange County Housewife. You dated him both pre and post Jessica Simpson, right?"

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Rovsek for her part tried to keep quiet but did admit to the relationship by saying "Yes."

Just recently, Rosvek dished on being "hazed" by her Real Housewives of Orange County co-stars.

Back in April, Rovsek said she experienced hazing from day one. "I would say the toughest part was just kind of the hazing you get from the veterans. I really didn't expect the hazing. I didn't really expect to be picked on like I did in the beginning. I found myself standing up for myself in the beginning right off the bat. I had to defend myself just from like the first meeting."

When asked whether it's because she poses a sexy young threat to the vets, and that they might be insecure, Lizzie responded, "I don't know. Maybe... I don't pick on people by the way they look or by their names, just very catty stuff like that. I was just really caught off guard that that those were the things I was picked on about. It wasn't typical for me."