Mayim Bialik has a "problem" with Ariana Grande's sexy billboard.

In a recent blog post titled, "The Problem With That Giant Billboard of Ariana Grande," which she wrote on Kveller.com,  the 38-year-old "The Big Bang Theory" actress overtly discussed her distaste for the sexual nature of many advertisements today.

"There is one for Ariana Grande, and I will go ahead and admit I have no idea who she is or what she does," wrote Bialik, who has two sons, ages 9 and 6, according to Us Weekly. "Based on the billboard, she sells lingerie. Or stiletto heels. Or plastic surgery because every woman over 22 wishes she has that body, I'm sure."

"Why is she in her underwear on this billboard though?" asked the actress, who has a doctorate degree in neuroscience according to refinery29. "And if she has a talent (is she a singer?), then why does she have to sell herself in lingerie? I mean, I know that society is patriarchal and women are expected to be sexy and sexually available no matter what we do in society, but I guess now I need to explain that to my sons?"

Grande's billboard is not the only advertisement Bialik objects to. Referring to the promotional materials for Showtime's period drama series "Masters of Sex," she wrote, "Seriously? How am I supposed to explain those to my kids? Especially my older son who can read?"

The self-proclaimed "old-fashioned" actress also slammed Levi's jeans ads, "where it's basically people groping each other as foreplay and undressing each other while making out... just tearing those jeans off of each other's bodies like it's the last day to repopulate the earth."

"I saw this ad when I went to see the latest 'Planet of the Apes' movie a month or so ago and I thought to myself, 'I don't want my kids seeing this ad if they come to the movies.' I just don't want them to see this ad," she added.

"Am I a crotchety old lady?" the "Blossom" star asked. "I guess so. But I just don't understand why this is what ads need to look like."