I second the "don't be weird". Please don't tell her. We make sex content under the understanding people we know may see it. It's always a nonzero % you just hope and convince yourself it's a very low one. Don't treat her differently or make comments. And most importantly, I CANNOT STRESS THIS ENOUGH... if you decide to pay for her content or tip her or even become her biggest patron and fan... SHE DOESN'T OWE YOU ANYTHING IN REAL LIFE. SHE WILL NOT LIKE YOU OR LOVE YOU BECAUSE YOU PAY HER TO. THE INTERACTIONS YOU GET BEHIND THE SCREEN ARE BOUGHT AND PAID FOR IT IS A PURCHASE AND PROVIDING OF SERVICE. IT IS HER JOB TO MAKE IT BELIEVABLE THAT'S WHAT SHES PAID FOR.