My(18F) autistic younger brother (14M) won't stop saying sexual things to me and pretending it's a joke. It's been several years that he constantly tries to walk in on me getting dressed and just generally wanting more than a brother-sister relationship. At this point it's not even funny and I don't really know what else I can do besides just going "hey please don't do that" because he doesn't listen and my parents don't care. Wtf do I do? He won't talk to girls so he's not going to stop because of a girlfriend or anything.

>>33378943 (OP)
overreact. it will overwhelm his tardo brain and cause him to stop.

>>33378943 (OP)
He's winning because he's right and you're wrong. It is a joke. It's a bad joke, but it's still a joke.

To defeat him, you have to accept that it's a joke. And ask him to explain it to you. Every single time, every single joke. He wins when you give him an outraged reaction, he loses when you play dumb and he doesn't get the reaction he wants from you.
>I don't get it, can you explain it to me?
>I still don't understand, how does it work?
>Is there a setup, is there a punchline, what's the structure?
>I'm still not seeing it, can you explain it differently?
>I'm fine with you joking around, but could you help make it more clear for me?
Never ever EVER get mad, only play dumb.

>>33378943 (OP)
Heneeds professional counselling

>>33378943 (OP)
Have you sincerely asked him to stop and said to him you feel violated when he invades your space like this? I'm not accusing you necessarily but I know from experience that often people (women especially) will beat around the bush or toss hints instead of coming out and saying what precisely is bothering them. Your brother may not understand how deeply his actions are affecting you.

>>33378943 (OP)
>my parents don't care
I seriously doubt that. It's possible that when he was ten or eleven they may have been able to ignore this, because they told themselves he was just a child and it didn't really mean anything. But at 14 he's a sexual being, and they have to take this seriously. Tell them you're frightened that he might try to grope you or even rape you.

The other thing you need to do is exaggerate your reaction. Get right in his face and shout or scream absolutely at the top of your voice: "STOP IT! STOP IT! STOP IT!" And keep on shouting and screaming continuously until he leaves the room. Even if he stands there for as much as a couple of minutes looking stunned, keep shouting, continuously, until he leaves. He won't be able to ignore that, and may possibly experience some sensory overload too. If you start doing that every time, he won't be able to ignore that.