Uncomfortable situation

I keep things brief and too the point a friend is has pushing for me and him to have sex with his girlfriend but she’s is like my sister no joke. A really cool woman I respect her and she told she wished I was her brother. But when he gets lit he try’s too things happen and where like no. What should I say or just let be?

I would say if he is only trying to get this done when he is "lit" then just keep on declining. If it did happen, once he sobered up he would most likely regret it and possibly blame you and his girl for it.

Yup. What Kipritech said.

Keep declining the offers. I'd only do it if everyone was cool with sharing each other.

You didn't share all of the information. Does she want to? If not, then there's your answer.

Do you want to? Sex is only fun, especially if you have to look them in the eye afterward, if you're into it.

I would take what your 'friend' wants last.