Bit of background Ok so my 13yr old sister is living with me since thursday I'm 24yrs old have my own 3 kids and my husband she lost her mum when she was 6months old and our dad works in qld 4 weeks On 1-2 weeks off since she was little her nan and aunty gave her everything she wanted cause they felt sorry for her cause her mum passed away and now they dont want her cause shes wild is living with me at least till my dad and his wife and kids get home if not longer my sister thinks she's going on 18 she dresses like an 18yr old tart she has a 17yr old boyfriend who turns 18 in march and still chucks tantrums if she dose t get her own way I discovered the other day and she tires to talk to me like crap I want advise as I'm not her mum or dad what consequences should she follow I'm so new to dealing with a teen as I wasn't this wild as a teen I'm pretty laid back in everything including the clothes I wear but she won't wear target clothes what should I do I can't afford the surfy brands I'm a young family that's just took on a teen any advice on the boyfriend situation ???