How do i react when my 6yr old is behaving sexually?

[simplyhurts]

Firstly let me say that i am completely devastated. One week ago my daughter was at my mothers house and went in to her nervous saying that her 'mini' (as we call her vagina) was bleeding as she had put something in it and thrust it till she bled around her urethra. When i picked her up i explained to her that 'mini' is very important to her as one day she will give birth through it and for that reason that it is very important to take good care of it. I also told her that it's OK to be curious about touching it, but that it is never OK to touch anybody else's or to let anybody else touch hers. She seemed to really understand what i was saying and promised she would be careful and keep it to herself. She also blamed it on a late night TV show that she supposedly watched at my mothers house after everyone else had went to sleep. It was a reality dating show involving a rock star, so goodness knows what happened on it. Then one week later she was at her best friends house for a birthday sleep over. In the night she told her friend and her friends other school mate (both girls also) that they should all 'sex each other' and they proceeded to 'rub bums'. She was also caught dancing sexually in front of her friends and saying it was 'for the boys'. The part that really upsets me is that the school friend told her that she was uncomfortable and asked her to stop, to which she did not stop and continued to 'play sexing' with her friend as the other girl went off to tell the mother. When she was confronted, my daughter just cried and said that she'd seen it on the movie 'dirty dancing' which she'd watched at my mothers when my mother thought she was asleep. Im so hurt and confused. she knew it was wrong as id told her just one week beforehand! i want to punish her, but i don't want her to feel ashamed!
I feel so terrible for the mother of the poor girl that was there as she doesn't even know us and yet her daughter has been subjected to this. What do i say to her that shows her that what she'd done was wrong, but without having her carry guilt on throughout her life? and how do i know that this behavior really did come from a movie and not that she's been exposed to something terrible?

simply hurt

[suziet]

I agree with margypops above.  Something more happened than watching a movie.  Any 6 year old usually does not have any sexual feelings.  Perhaps she can't go to grandmas anymore until you find out what took place.  "It is for the Boys" is a song title, but not on Dirty Dancing.  Does Grandma thinks she is cute and encourages to dance and sing?  Knowing how to dance and the othere things is not natural for a 6 year old.  Grandma needs to hear you say, "what up".  You need answers from adults she has been with. I would back away from my 6year old until I had all the facts.  

[margypops]

It may be a good idea to go to the Doctor  get it checked on if there had been a problem of bleeding in case she needed treatment. I would also find out why and how come your child had access to putting on a late night TV show/movie and how she knew what to put on, it does raise a red flag, so you are having a gut feeling follow it, if it is innocent then all is well and she is simply inquisitive but if there is abuse involved it would be good to know wouldnt it. I would keep her with you, and askyour Mom  how come she was able to see such things ...Godd Luck