'Big Bang Theory' Actress Mayim Bialik Does Not Approve Of Ariana Grande's Sexy Billboard Ad

The Big Bang Theory actress, Mayim Bialik isn't afraid to speak her mind. This time around she's speaking out against sexual billboards and why they even exist. The 38-year-old is the first to admit that she is "old-fashioned" and believes that you don't need to show everything to become successful. That being said, Mayim is calling out Ariana Grande for her new billboard ad, but she's not the only one on Mayim's naughty list.

On Friday, the Blossom actress wrote a blog on Kveller, which is a Jewish parenting blog (which Mayim regularly shares blogs on), about her problem with the "Bang Bang" singer and her giant billboard where she is wearing lingerie.

Mayim started her post saying, "I don't favor my kids cursing. I dress modestly. I don't want my kids learning about sex from billboards." That being said, the mother-of-two admits that sex-driven ads have no place on large billboards, because children can see them.

"There is one for Ariana Grande, and I will go ahead and admit I have no idea who she is or what she does," the 38-year-old actress wrote. "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."

The blog continues with Mayim asking an interesting question... if Ariana is talented why does she need to pose in her lingerie?

"Why is she in her underwear on this billboard though? 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?"

Mayim doesn't just call out the former Nickelodeon actress; in fact, she talks about both Masters of Sex and Levi's ads.

"While I'm having an old lady moment, what's up with those ads for Levi's jeans where it's basically people groping each other as foreplay and undressing each other while making out?" she asked on the blog.

The protective mother finished her post by admitting that she might be an old lady. "Am I a crotchety old lady? I guess so. But I just don't understand why this is what ads need to look like...Why do I have to be okay with young women literally in lingerie on gigantic billboards?" the Beaches actress asked.

"If I want to see women in lingerie, I can walk through any mall with a Victoria's Secret."