January 25, 2012 at 05:08 PM EST

Aaron Johnson played a would-be superhero in Kick-Ass, and it looks like his second child might follow suit. At least, based on her name: Romy Hero, Johnson’s daughter with fiancée Sam Taylor-Wood, was born Jan. 18 in London, People reports. According to a statement, “both mother and daughter are well.”

Johnson and Taylor-Wood’s first child, Wylda Rae, is a 1-year-old. Taylor-Wood, an artist, has two daughters from a previous marriage: 14-year-old Angelica and 5-year-old Jessie. Johnson and his fiancée have made headlines for their May-December romance: Johnson is 21 years old, while Taylor-Wood is 44.

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