1. Cunt

>if you're not uncomfortable with your sister being in panties around you then you're a pervert

how does this logic even work

give your sister a nice back massage and she will love it. my sister even allows me to massage her butt

tell me more

>then you have dirty sinful thoughts
Why is that a problem exactly?

My sister has ALS and i feed her sometimes, as long as i take care of her my parents won't kick me from home for being a neet
>inb4 pics

*PRRRRRRRRAAAAAATTTTTTTFFFF*
W-whoa, excuse me big brother, must be the beans I ate haha ^. ^

But you don't man, what part of "its like a brother with pussy" you dont understand? It seems hard to understand but you DON'T think or see your sister as a girl, I don't know how to explain it.
Think about it like seeing your brother in boxers all the time, its common. Its hard to understand if you dont have a sister/brother.

she lays on floor while only wearing panties and t-shirt usually and i rub her back and slowly go down to massage her nice butt

It means that you actually wanna have sex with her ya dummy
Go for it man, don't listen to me

I can be your oneechan