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Katherine Heigl, Maureen McCormick, and More Stars Who Dated Their On-Screen Family Members

On-screen siblings like Marcia and Greg Brady may be the definition of family goals, but their real-life chemistry wasn't as innocent as the one we saw on TV! It turns out Maureen McCormick and Barry Williams had a romantic relationship — and they aren't the only ones who found love with their fictional family members!

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Click through the gallery to see which other stars have dated their on-screen family members in real life!

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