I've been in almosy this same exact situation. I used to be a camp counselor in HS watching 10 year olds during the same. These two girls gave me issues that still fukk with me. One was an overly affectionate whit girl who would cry when I didn't give her daily hugs. It got to the point where she wanted to lean on me all the time. I had to institute a "no touching" policy for every. I requested to switch groups half way through the summer.
The other girl would ask about how many girlfriends I had or what kind of girls I like constantly. She eventually started mimicking one of female consulars. Then finally bit me when I started to ignore those type of questions. I told a psych major roommate years late....breh said those are signs they may have been abused
Cac probably since something was off with her (he was right). Children who are too precocious creep me out.