Always check before making noise. If you aren't sure if you are alone then muffle thr sounds between a pillow and your partner's ear (that way he/she still has the satisfaction of hearing you). Still, that sounds like an awkward situation for you.

You can have sex anytime. Nothing replaces a brother that cares so much about you.

are you supposed to leave autistic children home alone?

Lock the door. ? at least he cares

Don't worry, OP. I know what you're going through. I have a twin brother with Autism. He still hasn't learned about privacy. I'll be drying myself after a shower and he'll burst in the bathroom to pee. But first, he has to hug and kiss me. It can be annoying, but I love him anyway. :)

So it was that frisky..

Aw at least he cares

Even though it wasn't at a good moment, I find it so adorable that your brother would do that for you.

Sucks to your asmar piggy

so would your autistic brother be home all alone? it seems odd