By Siofa Brennan of the Daily Mail
Their brother is the sporting success story of 2017 having turned his loss against Floyd Mayweather into a £77M (NZ$137m) payday, just four years after surviving on dole payments of €188-a-week.
But while Conor McGregor has been basking in the glory of the most lucrative of defeats, his two sisters Erin and Aoife have been busy edging into the spotlight.
The blonde sisters have been on hand in Vegas to support their brother, hitting a pool party at the Aria Resort & Casino on Sunday in Team McGregor swimsuits with Erin later quaffing champagne direct from a gold bottle at the Encore Beach Club.
And the glamorous pair are certainly no stranger to the high life, regularly flaunting their enviable lifestyle on Instagram to their combined following of more than 125,000.