It’s gross and weird....

My mother is living with my husband and I. She has claimed my living room and sits there almost all day watching Netflix. She keeps watching shows or even the same scene from a show over and over. It’s sex scenes. I know she is probably horny and all, but like while my husband and I are home?! It’s just gross and disrespectful. How do I approach her with this to ask her to stop? She has a very short fuse and gets mad extremely quick. We just don’t like sexual things in our home. We don’t even watch sex scenes when they come up in a movie or show. We skip them.