Babysitter, child expressed a type of sexual abuse.. not sure how to say it..

Is my second time watching the children 8 yo girl n 4 yo boy

Mom is not all about being girly blah blah..trying to keep it short.. I am so I do a hairstyle of her choice when I do nights after bath..

While I'm doing her hair she tells I don't like my cousin..

Me- okay how come? How old is he?

Girl - I really don't like him he tried to touch my behind and tried kissing me n did...

Me- (inside am like wtf u mean keep calm) I asked did u tell mom n aunt.. she said yes.. but nothing happened.. her little brother came didn't mean to forget to keep asking her but is was past bed time.. I ask today..

Not sure how to bring it up to the parents..

I was abused a child sexually abused.. so I'm glad she was comfortable telling me.. but not sure how to go about it.. I ask her more details today before I say anything to her parents any suggestions..

Update! Spoke to the child.. she said yes always tell an adult (good) her aunt, Boys mom hit him really hard when I told her..

The children I'm taking care were staying with the aunt for a period of time.. child (girl) says she told a few people.. including her mom.. not to long ago.. cousin tried kissing her while a sleepover.. told again nothing.. cousin got in trouble girl says he is a troubled kid.. he also has a hearing aid.. so God knows if someone is hurting this child.. I will bring it up to the parents when they get back.. hopefully I don't lose my job!