Nothing better than robbing something off your sister to wear on a night out - no matter who she is.

Dee Devlin is one of the most stylish women in Ireland and clearly her younger sister thinks so too. Sarah Devlin has been spotted raiding Dee's wardrobe, something many of us who've lusted after her looks for years will relate to.

Great weekend, Christmas is coming!! ❤️

A post shared by SarahDevlin (@sarahdevlin01) on Nov 19, 2017 at 6:41am PST

Posting to her Instagram a few weeks ago, she shared this pic of a herself off on a night out wearing a cute peach coloured V-neck mini dress. As the folks at the Irish Mirror have spotted, it's the same dress that Dee wore on one of the biggest night's of partner Conor McGregor's career - his July 2015 Interim Featherweight Championship bout against Chad Mendes.

Get to know McGregor's girlfriend, Dee Devlin, also the mother to his son #NationalGirlfriendDay #MayMac - https://t.co/FSdcy7Iuoj pic.twitter.com/JXifq8bcvu

— Canada Sports Betting ? (@CANSportbetting) August 1, 2017

Five times Dee Devlin was a total knockout by Conor McGregor's side https://t.co/QntYew5K2y pic.twitter.com/jD17Wt9dWE

— Extra.ie (@ExtraIRL) August 26, 2017

As for who wore the dress best? We reckon it's a tie - both girls looked stunning in it. Sarah might be a little less well-known than her sis but we reckon that's about to change. The 22-year-old has just signed with Assets Models.

Lady in red ❤️?

A post shared by SarahDevlin (@sarahdevlin01) on Nov 26, 2017 at 12:09pm PST

"She has a very distinct look and has everything that we look for in a top model.  She's also completely at ease in front of the camera," Assets' Derek Daniels told the Sunday World. "It's a natural fit and we hope to work with her well into the future."