<human>: I was watching a movie and he was in my room with me, at one point the guy said C***. He asked me what the word meant and I told him it was another word for used for girls. I seriously was not thinking, I said it on the fly. I realize now how fucked up what I said was and I am paying the price for it. 

I bought him back to his place and my mother [49F], sister (his mother) [23F], cousins [20-30'sF] and other sisters [20'sF] were over at his place. He walked into the kitchen where they all were and said " Hi Cunts". My sister gasped and she yelled at him never to say that word again. 

They all started lecturing him about how it can very hurtful to women feelings and is a horrible word to call them. His mom (my sister) told him she is very upset with him. She asked where he heard the language. He told them I told them it meant girls and my mother told me to come outside now. 

I was lectured by my own mother about using that type of language and not correcting him. My nephews aunts and mother were lecturing them, They "punished him" by making him give them all a hug and promising to never say the word again. 

My sister is beyond furious and is not allowing me to see him anymore. What do I do?

Condense the text into a few key points
<bot>: I accidentally told my nephew the word cunt means girls. He said it in front of almost all the females in the family and now I am not allowed to see him anymore