This is a somewhat difficult question. First of all, who's friendship do you value more, his or his sisters?? i am not saying you will have to choose between the two, but sometimes siblings are off limits...Talk to his sister first and see what she thinks. if she doesnt like the idea, you probably shouldn't go out, out of respect for her... but if she doesnt mind the idea, i say go for it!!
If I were a younger brother I would get my way more often. If I were a younger brother I would envy my older brother. If I were a younger brother I would pester my sister. If I were a younger brother I would have a crush on my sister's friends. If I were a younger brother I would want to play with my brother's toys. If I were a younger brother I would not like hand-me-downs.
If your sister goes with your brother then it's incest and they would both be your siblings. If a girl is dating your brother and they get married this would make her your sister-in-law.
The sister's son would be the nephew of her brother.
If your sister-in-law is the sister of your spouse, her brother is the brother of your spouse and your brother-in-law. If you are a woman, and your sister-in-law is the sister of your husband, then her brother could also be your husband.If your sister-in-law is the wife of your brother, then her brother is not related to you.no relation
Your sister's husband is your brother-in-law.
If your half-brother has a full sister, she is your half sister. If your half brother has a half sister, she may be your full sister, or she may not be related to you at all.
Your brother would call your husbands sister by her first name. Or, "my (sibling's) sister in law.
sisterNo it would be Niece is to Nephew as Sister is to Brother. Niece and sister are both female, nephew and brother are both male.
The relationship of the sibling of your sister-in-law or brother-in-law to you does not have a name in English. You could call them your brother- or sister-in-law if you want, or you can call them the brother or sister of your brother- or sister-in-law.
Yes, your sister's husband is your brother-in-law, as is your wife's brother.
Yes
Your brother's wife's brother is your brother's brother-in-law and your sister-in-law's brother. But he is not considered to be related to you. Usually you could just refer to him by his name.