Kate Beckinsale Posts Sweet Tribute to Lookalike Daughter Lily on Her Prom Night: 'You Take My Breath Away'

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The actress gushed about her gorgeous daughter as she headed to prom.

Kate Beckinsale was bursting with pride as her daughter, Lily, headed to prom!

The proud mama shared a sweet tribute to her gorgeous 18-year-old mini-me, who looked absolutely stunning wearing a strapless red prom dress in a photo posted on Sunday.

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“You take my breath away @lily_beckinsale #prom you're funny and clever and gorgeous and just enough crazy to be my favourite person in world,” the Underworld star wrote. “My Fallopian tube is like BITE ME I KILLED THIS.”

With her gorgeous, flowing, wavy brown locks and flawless complexion, Lily -- whose father is Beckinsale's ex, Michael Sheen -- looked a mirror image of her 43-year-old mom in the pic.

Later in the day, Beckinsale shared another sweet message in honor of those suffering pain on Mother’s Day.

“Happy Mother's Day to all the mamas ?,” she captioned a photo of a pink bouquet. “And , to all the girls feeling like shit today , whether it's miscarriage , abortion , trying and not yet managing to get pregnant , having lost your own mother, lost a child ,family fighting ,not having met the right person or just feeling crummy, love you too .These holidays are hard when you're bearing something private and painful . Hugs ladies, you are not forgotten ?????.”

WATCH: Michael Sheen and Kate Beckinsale Embrace Upon Hearing Daughter Lily Got Into College

See more on Lily, and the adorable way her parents reacted when she got into college, below.