Look,

No matter how much you try to ignore it, the fact is, you two are still flesh and blood sisters.

You can't get married.

You're both girls, so you can't have children.

This kind of relationship...

Who can you tell about it?

Not your co-workers; not your friends;

Especially not your family.

You'll regret this.

I'm sure of it.

I'd rather regret that

than giving up my sister,

I'm sure of it.