Oliver is steering this ship all alone today and opening up like never before. While sister Kate is away at work, Oliver pours his heart out to actress Robyn Lively for a special episode of Sibling Revelry.The two talk about what it's really like to have mega famous siblings, and would they trade places with their sisters Blake Lively and Kate Hudson?Plus, Oliver goes in depth about his infidelity and why he doesn't regret what he did.And, find out the pact Robyn made with her hubbie Bart Johnson when they decided to have kids.Did either pay a price? Listen to find out.

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