Justin Baldoni told Blake Lively he was circumcised during a personal conversation.

Details of their conversation that took place at Lively’s New York City home back in December 2022 — while she was still pregnant with her now-2-year-old son, Olin — have come to light in an October deposition obtained by Page Six on Thursday.

In what started as a professional conversation between the two — as Baldoni was trying to convince her to play the role of Lily in “It Ends With Us” — quickly turned too close for comfort when he started talking about his genitalia.

Baldoni, 41, recalled their discussion about whether or not Lively’s son would be circumcised once born.

The “Gossip Girl” alum’s attorney, Michael J. Gottlieb, asked in the court documents filed on Dec. 4, “Among other things, you dis

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