What would you do? Tell your mother about all the bad things your sister did or keep those evil little secrets

[ruaryx]

My sister is kinda like that..
In MY opinion, I'd just ignore all of that. I mean, what can you gain from revealing her secrets? Just make sure not to follow her example when you grow up..

Or maybe you can talk to your sister and tell her how you feel? I personally wouldn't feel comfortable doing this, but it might be the way to go, depending on your relationship with "Nicole".