If this was done to a full grown adult there'd would possibly be headlines, it really makes you think about this shit. This is nothing short of torture.
consensual incest is a myth. incest is inherently abusive and always involves unhealthy power dynamics between the perpetrator and victim where grooming, coercion and in the end trauma and violence takes place.
same, i just said that this behavior is reminiscent of pedophilic actions/sadism. you shouldn't be sexually humiliating your child or deriving any sort of pleasure from doing so