Lindsay Lohan and fiance Egor Tarabasov get cozy at 'Alice Through the Looking Glass' screening in London

Lindsay Lohan and Fiance Egor Tarabasov Show PDA at First Public Appearance Since Engagement

Lindsay Lohan is all wrapped up in love.

Days after being spotted making out on a yacht in France, the 29-year-old actress and her fiancé, Egor Tarabasov, attended their first public event since getting engaged.

WATCH: Lindsay Lohan Shows Off Engagement Ring at Duran Duran Concert

On Thursday, Lohan and the Russian shipping heir were on hand for a private screening of Alice Through the Looking Glass at London's Bulgari Hotel.

The Mean Girls star rocked a casual black-and-white Temperley dress with black Superga UK platform sneakers, while Tarabasov donned a white T-shirt and denim jacket. Lohan also posed for photos with her beau, fashion designer Alice Temperley, who was hosting the event, as well as photographer Greg Williams.

Earlier in the day, the couple had lunch to celebrate Tarbasov's 23rd birthday, with Lohan giddily documenting the occasion on Instagram. "Rushing around from work to lunch to work and fittings but still smiling!!" she wrote.

WATCH: Lindsay Lohan Stuns in Makeup-Free Photo, Dons Sports Bra for Intense Workout

Despite dating for several months, the two never officially announced their engagement, but LiLo was spotted rocking what appeared to be an engagement ring at a Duran Duran concert in Brooklyn on April 12. That same day, ET confirmed the engagement news.

Find out what Lindsay's dad, Michael Lohan, had to say about her new relationship in the video below.

Michael Lohan Gushes Over Lindsay's Engagement, Says She's 'Found True Happiness'

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