Scott and Kelly Wolf

Party of Five alum Scott Wolf and his wife Kelley are expecting baby No. 2.

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"Just between the 10,149 of you and me, my wife and I are expecting our second child. We are expecting that because she's pregnant. Happy us," the actor tweeted on Saturday.

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Wolf and his wife, who starred on MTV's Real World: New Orleans, are already parents to a 3-year-old son named Jackson. They've been married since 2004.