Okay so I started watching this by myself, my dad was interested and after my 3rd episode watched it with me, he strongly disagreed with some of the content. I didn't find it disturbing and have watched up to season 3. I guess it really depends on the person, when you let your child watches it you should watch it first, if you think your child can cope obviously it's okay, but everyone is different. When you are young your brain is still developing, this means if you see an abusive relationship in a movie/tv show, when you grow up you might subconsciously think it's normal and let your partner abuse you or abuse your partner. I will write a review on each season up to 3. CONTAINS SPOILERS!
Season 1: Murder house 16+
Sexual content can be strong, however it is generally brief and non-explicit. There are a few rape scenes and scenes of sexual threat during the season, however they are non-explicit and generally quite brief. These include a man trying to rape his maid before being interrupted, a man raping an unconscious woman, a man forcing a woman to undress for him(nothing sexual comes from this), and a woman being raped by a teenage boy wearing a rubber suit (she believes him to be her husband). Rape is often an important plot point. That said, there are also several nude scenes, mostly male butts. The rest of the season contains cigarettes, self mutilation, some more mild sex and alcohol, language consists of bitch, cocksucker, and shit. Dirty talk such as, "Don't you wanna know what I'd do to her? I'd lay her down on the bed and carress her soft skin.. Make her purr like a little kitten. She's a virgin. They get wet so easily."-Tate Langdon.
Season 2: Asylum 17+
features more frequent and more explicit sex scenes. Some of these show brief nudity. Sex scenes have included strong oral sex scenes. Male and female masturbation is portrayed graphically in several scenes, without nudity.
Nudity is quite frequent, but generally brief, however a few scenes can be quite extended. Male and female buttocks are clearly seen several times, and obscured or blurry views of female breasts and genitals can be seen.
There are a few scenes depicting rape or sexual abuse, including a woman being forced to fondle a nude man whilst masturbating, a nude man violently raping a woman, a woman recalls being raped by her father, a man removing his shirt and caressing a nude female corpse, a man forcibly sucking a woman's breast, a woman being forced to kiss a corpse, a man attempting to rape a screaming woman, a woman raping a man, and a man having intercourse with a dead body. Some rape scenes include nudity.
Very disturbing scene of a lesbian woman being forced to masturbate to naked men to 'cure' her. A man is diagnosed as a chronic masturbator and we see him violently masturbating in a few scenes. However, his genitals are not shown. This is more comedic than anything else. Profanity and hand gestures are used This season is the worse of the three.
Season 3: coven
Is supposedly aimed for teens, but includes fertility, threesomes, cunnilingus, oral sex, incest, rape, necrophilia, bestiality, sexually-based punishments. A mother sexually abuses her son for the first 2 episodes however it is just two scenes, including her touching him under a blanket and grinding a little on him while fully clothed, he does not accept, and looks thoroughly uncomfortable. There is a gang rape scene including a protagonist, Madison Motgomery, and a group of frat boys, she is drugged and taken to a room where no nudity is shown but they record it. The season consists of two graphic sex scenes one includes a young girl walking in on a boy and girl having inter course against a wardrobe only boys butt is shown, There is a disturbing violent sex scene involving a ritual for fertility. A woman and a man cut their fingers and spread blood around them. They get nude and begin having sex. The man's buttocks are shown as well as her bare legs, his legs and his chest, and an extremely quick glimpse of her chest. When he climaxes, there is a loud, echoed moan from both of them. Crude gestures are made and talk of sex is occasional. The threesome is suggestive and shot from under the bed a towel drops from around the girl and the two girls one boys feet are pulled up, after suggesting the girls share him, scene ends. Frequent use of whore slut and shit. But is less frightening then the other seasons. Horrific torture scenes are included but not sexual. Also drugs such as cocaine cigarettes and alcohol.
Season 4: freak show
I have not seen this but based on what I've heard it is extremely violent, and sexual. I would suggest 18+ and haven't even watched it yet.
I hope this helps remember if you are a parent watch first and decide on how your child will cope. You know yourself and your child more then any expert!