The Love Island star, 26, took to Instagram to wish her man a special day – and gave fans a glimpse of their stunning pictures together.
Lucie wowed in a white sequin triangle bikini set as she gazed into Luke’s eyes.
The surfer chick styled her blonde locks into loose waves and wore minimal make-up.
Meanwhile Luke showed off her muscles in black swimshorts.
Lucie captioned the post: “Happy Birthday to my soulmate!😏❤️🔥 –
“This man really brightens up my world I seriously wouldn’t know what I would do without you, I’m so lucky to have you.
“Let’s carry on making beautiful memories together, I love you ❤️🔥.”
Lucie and Luke, who have been dating since 2020, got engaged in 2021.
Back in December the loved-up pair got accused ‘getting engaged for likes on Instagram’ when they celebrated their proposal on holiday.
Luke shared a snap from their special moment with the caption: “2 year’s engaged.. 💍.”
Some took to the comments section to share how confused they were by their engagement.
One user commented: “I’ve always said that an engagement isn’t real unless they’ve set a date for a wedding.
They continued: “Otherwise, it’s just like my plan to be a millionaire: it’s it’s vague goal without any realistic “when” or “how”.”
The couple shot to fame on different series of Love Island.
Lucie took part in the fifth season of the show back in 2019 alongside the likes of Molly Mae Hague and Maura Higgins.
The blonde beauty was linked to a number of guys in the villa.
She showed an interested in Tommy Fury and Joe Garratt.
After leaving the villa, Lucie and Joe tried to make a go of things, but it didn’t work out.
Meanwhile Luke shot to fame on the first series of the winter Love Island in 2020.
He entered the villa as a bombshell and managed to place third with co-star Demi Jones.
The former flames tried to make a go of things, but they split in May 2020.
Luke was then linked to Lucie just a few weeks later.
Lucie Donlan and Luke Mabbott relationship timeline
June 2020: The pair started dating in lockdown.
July 2020: They made it Instagram official
May 2021: Luke and Lucie got matching tattoos
June 2021: They started to renovate a property together
2021: Luke and Lucie got engaged!