Babysitter
Type: Attribute / Contextual
Description: A person who looks after a child or children in either their own or the child's home, who is not a member of their immediate family.
Notes: Should not be confused with the teacher, tutor or coach tags.
Gender: The gender of the babysitter determines if the tag is placed in the female or male namespace.
With notable synonym nanny.

For reference, this would apply when it's babysitter and ward interacting, not for situations such as "kid's dad fucks the babysitter".

Examples:
http://ehentaihip.com/g/3108576/5d07a38977/
http://ehentaihip.com/g/2763309/83d54dad93/
http://ehentaihip.com/g/2748089/5f535f53bb/
http://ehentaihip.com/g/2239163/a4b780d5ec/
http://ehentaihip.com/g/1936777/e2458260a2/
http://ehentaihip.com/g/1408861/b2b76ab9b7/
http://ehentaihip.com/g/3069970/b4744f1ceb/