'Vanderpump Rules' Star Scheana Marie Treats Her Lil Sister to Sin City on 21st Bday

"Vanderpump Rules" starScheana Marie knows a thing or two about getting wild and having a good time, so it's only fitting that she introduced her little sister to Las Vegas on her 21st birthday.

The reality star surprised her sister, Cortney Erin with dinner this week at Andiamo Italian Steakhouse downtown at the D Las Vegas. Cortney is a rising social media star with a YouTube channel that showcases her travel vlogs and lifestyle videos.

She brought along her boyfriend to dinner while the group dined on surf 'n turf, and then a big piece of chocolate cake for dessert. Afterwards, they took the D's limo out into the city to let loose.

Happy Birthday!