Questions: Family & Friends

I'm 18 and currently living with my parents (I graduated last June and have trouble finding a job). In that house also lives my older brother (21), my younger sister (16), and the sister in question (14).

So my sister is 14 and got kicked out of school for poor performance (35%! She skipped almost every day). The only thing she does is staying at home playing video games. As both my mother and brother have to work late, I offered to take care of the house.

Well, my duties is keeping the house clean and cook for my sisters. Since I don't see why I should be the only one cleaning, I give menial tasks to my sisters (empty the dish washer, take out the trash etc.).

Yesterday I asked my 14-year-old sister to clean a dirty window. She was busy playing GTA and told me "later". 2 hours later after I was done with everything else I asked her if she would EVER do the window. "Goddamnit, later" was all I got back. I cleaned it myself and it took me 2 minutes. After I was done I told her that doing nothing is what a useless brat like her does best. She got angry and said "I fucking hate you, go fuck yourself" while she ran to her room. I followed her and told her that she just can't talk to me like that. She then showed her middle finger to me and said "fuck you". That's when I exploded in rage and slapped her in the face. It was probably very hard, as she was crying and holding her left eye and cheek.

Was I wrong to slap her?

And how could I have handled it better?

My friend has a cousin coming from the States who is 21 and he's 19. His parents are okay with them sharing a bed even though she's a female and he's a male. I see nothing wrong with it as well but my parents think it's completely insane for opposite sex people to sleep together, especially family members. They're trying to insinuate that something sexual would happen but would a parent not allow a gay child to share a bed with males because of their sexuality? Seems ridiculous.

They're family members and not going to be having sex so what's the big deal?

My younger sister likes to watch movies with me at the end of the day it’s kind of our thing. When it’s lately she usually starts to cuddle with me and lays on me. The last few times she has she started playing with my hand and end up interlocking our fingers. It makes me feel kinda weird cause we are brother and sister but I also kinda like it. She is 11 and I am 16 so I don’t think it’s that weird in “that way”

Earlier on GAG I asked if you were fine with people kissing their children on the mouth, now I'm asking about what you think of a kiss on the neck. #Kids #NeckKiss

My Opinion:
How I think it's inappropriate to kiss children and other family members you're not dating on the mouth, I think the same about a neck kiss. There's several private parts on a human body and it's the mouth, neck, chest, groin and butt. I'd rather do the ice bucket challenge than having the wrong person kissing or touching me on one of the five privates.