Today marks Cally's birthday and to celebrate her turning 24, Luis shared a gorgeous photo of himself and the starlet to his Instagram page.
Paying a touching tribute to his girlfriend alongside it, Luis told her: "My beautiful doll face princess I love you so much and happy birthday. I'm gonna make your birthday the best one you've ever had."
He then added: "I love you to pieces" Before sharing an emoji of an engagement ring and writing: "I can truly say this day will come soon."
Luis' promise of a proposal isn't the first time the footballer has spoken of marriage. Completely smitten with Cally, Luis exclusively told Reveal at our Online Fashion Awards earlier this month that he has already been out looking for rings!
He said: "We're still in love and happy as ever. I can 100% see us getting married, I've actually been having a browse for rings!"
Luis and Cally first began dating while starring on ITV2's dating show Love Island. The pair who had originally dated before the show were reunited when Cally decided to surprise Luis and put herself forward to enter the villa.
The boys had to pick one girl to join them and luckily for Luis, they all decided on Cally.
Since rekindling their romance, the couple's relationship has gone from strength to strength and even though both are certain they will wed, Cally added she doesn't want the pair to rush into anything.
We don't want to rush into it," Cally admitted. "We want to do things really nicely, so hopefully Luis has something special up his sleeve!"
Luis' latest Instagram of the pair comes after he and Cally attended the National Reality TV Awards last night (30 September). Getting all glammed up for the occasion, Cally looked just gorgeous in a sparkly zebra print gown, while Luis was suited and booted in a three-piece suit.
They joined the likes of Hannah Elizabeth and Jon Clark and Love Island winner Jess Hayes to represent the show and found themselves celebrating, after Love Island bagged the award for 'Best Social Experiment 2015'.
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