If she tell your mom about it I think it will be better to explain what's happening it's not like you are doing something bad (not drugs nor sex) just watching yaoi.
Everything will be fine, its a good thing it is not a sex scene right, its kinda normal for girls to like bromance, you are not doing anything wrong. Im sure your mom will understand that
I accidentally disliked your comment ╥﹏╥
I agree with the other comments ,if the co workers are not close to your mother they cant tell her but even if they were I don't think that it's their place to talk you know? Not their business. So don't worry!!! Besides it wasn't anything explicit it was just a hug!!!
Damn, guys i need to calm down. Today i watched Thai BL series and it went well until my mother co worker came to put some files. The computer was really big and the scene was about two men hugged each other on bed but their faces were not close. Then another co worker came in but i convinced him and he believed it they were only friends played a prank. Maybe because he was a man like them he understood. But i'm worried about the other one, will she tell it to my mom?(⊙…⊙ ) i hope not. How to calm down guys give me some solutions ヽ(`Д´)ノ