Should I add my boyfriends sister on Facebook?

[Miranda]

i would add her

[Logan]

i would if you get along.

[Sarah]

Sure, why not?

[Casandra]

ya y not ? i did with my sister boy friend but they been going out for a long long long time so ya go ahead y not.

[Karen]

I'm friends with my cousins GF's. They are older than me and they friended me. It's fine.

[Amy]

add her!

[alana]

It's probably a good idea to get to know her better before contemplating adding her as a friend on your fb account. That way, you'll be more comfortable if and when you do decide to add her