nothing wrong with this, IF the intention was pureI just took it as teaching your kids where people are not allowed to touch them and then just asking if anyone touched them. Make it sound innocent as possible ofcourse.
Ofcourse I'm going at it from a generic perspective, you seem to have a specific scenario where your baby mother might be using this to get you and your side of the family caught up. If so, I understand your stance, but you also have to agree in a situation where its just for the well being of child, its ok to ask.
BUT if its just a parent being nosey and placing suggestive thoughts into a child's head, THAT's what im taking issue with.