In this clip from this Sunday's all-new WAGS L.A., Olivia takes Natalie for a very bloody vampire facial.
"It's good for wrinkles, it's good for sunspots. We're gonna blog about it, we have to, we have to, it's a vampire facial!" Olivia exclaimed.
After getting their faces numbed and prepped for the procedure, the girls were ready to "dine in hell," but not without a little fun first.
The girls tested out the numbing cream by giving each other a hefty slap to the face.
"Olivia, can you feel your face? I won't wind up, okay, a little baby tap. See, it was nothing," Natalie reassured Liv.
A few slaps later, it was time for the blood.
"You are gonna die when you see yourself," Olivia told Nat.
After a look in the mirror, Nat realized red wasn't really her color. While Olivia was all about her new bloody look, Nat couldn't miss a moment to poke fun at her cousin.
"You kinda look like a tampon," Natalie told Liv.
The day of bloody facials ended with a well deserved treat, a gigantic pepperoni pizza.
Watch the girls get their vampire on in the goofy clip above.
Watch the two-hour season three finale of WAGS Sunday at 10 p.m., only on E!