Hugh Hefner's son Cooper and the Harry Potter actress announce the birth of twins

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Cooper, 30, proposed to longtime girlfriend Scarlett Byrne in 2015 before tying the knot four months later.

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Hugh Hefner's youngest son Cooper and his wife Scarlett Byrne have welcomed twin girls.

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The Harry Potter actress shared the good news with her followers on her Instagram on Tuesday.

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Cooper, 30, proposed to longtime girlfriend Scarlett in 2015 before tying the knot four months later. Reportedly

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the couple welcomed their first daughter, Betsy Rose, in the same year.

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Updating fans on their new arrival, mother Scarlett wrote on social media: "'My heart doubles this weekend to Cooper and I welcomed our daughters

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