Miscellaneous

Committing zina with one's autistic brother

Q: When my friend was 10 and 13 she tried committing zina with her autistic brother. She believes that at the time she didn't know what this action was. Her brother has been tested to have no sexual fantasies. She believes that the penis did not penetrate the vagina, which means this is not intercourse. She has repented and 100% knows she won't do it again. She still feels guilty, does she have to leave home, where would she go? She doesn't want to reveal this to her family. 

Laughing at someone

Q:

1. If someone is short or black, will laughing at them be kufr because Allah made them like that? It will be as if a person is indirectly laughing at Allah's decision.

2. I heard in a hadith that Moosa (alaihis salaam) was dark in complexion (black or something). Will it mean that making fun of someone who's black because he is black like indirectly laughing at Moosa (alaihis salaam) too.