Would you allow ur little 4 year old girl to look at naked women posters?

me and my family went to this event and there we got a whole bunch of stuff my brother got these posters of mostly naked women there hair was probably covering their chest , but yea my baby sister was 4 at the time and she was looking at the posters with my brother when we were driving home , then i was like mali dont look at that. she was like leave me alone and my brother and mom was like she can see it and i was like shes only 4 years old she copies everything she sees. but they let her do it any ways, now shes 6 and she wants to watch the movie friday all the time and i said no because shes going to try to start cursing like them but my grandma and everybody else lets her watch it and im like she copies every thing she sees she sees girsl shaking their booties and she starts to do it. and i dont know if this is to much but by baby sister is a hoe shes always sticking her in the air when shes laying down in my face just to annoy me and its so disgusting she makes me want to strangle her because its so nasty but my grandmas like shes not bothering you leave her alone but she is bothering me her nasty is in my face. i swear my sister is going to be a slut when she get older they let her do anything nasty so my question is would you let your daughter or sister watch Friday and look at naked women if she copies everything she sees?