Recognize · when the person who caused harm is also a child
Peer and sibling abuse
A large share of sexual offences against children are committed by other children. Adults handle this badly in one of two directions — waving it away as curiosity when it is not, or treating a young child as a criminal when what was described is developmentally ordinary. Both errors leave a child unprotected.
The rule for this whole page
Do not attempt the distinction yourself. Telling ordinary sexual development apart from harmful sexual behaviour requires specialist assessment, and there is no version of the criteria that is safe to apply from a hallway. Report it, describe exactly what you observed, and let the assessment happen where it belongs. In almost every one of these cases both children need help, and one of them is frequently also a victim.
What it is
Two distinct situations sit under this heading.
Harmful sexual behaviour between children
Professionals do not ask "was this abuse?" as a yes-or-no question about the act. They look at the surrounding facts: the age and developmental gap between the children, whether one held power over the other, whether there was coercion, bribery, threat or secrecy, whether the behaviour was compulsive or escalating, and whether it stopped when an adult intervened. Behaviour between similar-aged children that is curious, mutual, occasional, and stops when redirected sits at the ordinary end. Behaviour involving a significant gap, coercion, secrecy, or knowledge beyond the child's years does not.
The other thing professionals ask is where a child learned it. A young child displaying sexual behaviour well beyond their age has usually been exposed to something — abuse, or adult material — and that question matters as much as the behaviour itself.
Sibling abuse
Sibling sexual abuse is believed to be among the most common forms of intrafamilial sexual abuse and among the least reported. It is minimised more than any other category — recorded as rivalry, roughhousing, or experimentation — partly because acknowledging it means a family confronting the fact that both children live in the same house and one of them cannot currently be safe there.
Severe physical sibling violence is likewise routinely normalised in a way that identical behaviour between unrelated children would never be.
Bullying, and where it crosses
Most bullying is a school discipline matter, not a maltreatment report. It becomes a report when there is physical injury, sexual content, coercion into sexual acts or images, or an adult in the setting who knew and permitted it to continue.
What it is not
Two errors, both expensive
"They're just kids" is not an assessment. Harm caused by a twelve-year-old lands on the other child exactly as hard as harm caused by an adult. Deciding it does not count because of the age of the person who caused it protects nobody.
And a child who harms another child is not an adult offender in miniature. Outcomes for children with harmful sexual behaviour who receive appropriate treatment are good — re-offence rates are low, and considerably lower than public belief assumes. Treating a ten-year-old as a predator can foreclose a life over something that was treatable, and a significant proportion of these children are themselves being abused.
Ordinary sexual development exists and is not evidence of anything. Curiosity about bodies, questions, and some looking and touching between similar-aged children fall inside the normal range at various ages. Panicking about it teaches children shame, which is the thing that stops them telling you about the situation that actually matters.
Reasons to ask a question
Not a checklist, and not evidence of anything. Every item below has ordinary explanations that are more common than the alarming one. What matters is a cluster that is new, that persists, and that nobody can account for.
A marked age or developmental gap between the children involved
Any coercion, threat, bribery, or secrecy — this is the single most important factor on the list
Behaviour that does not stop when an adult intervenes, or that becomes more concealed afterwards
Sexual knowledge or behaviour well beyond a child's age, which raises the question of what they were exposed to
One child who avoids or fears another, particularly a sibling, or who will not be left alone with them
A child asking to sleep somewhere else, or who has begun barricading a bedroom door
Injuries between siblings that get explained as roughhousing and keep recurring
A family already treating something as settled that nobody outside the family has assessed
Composite scenario — assembled from patterns in case literature and published guidance. Not a real child.
Handled internally
A parent finds out that their fourteen-year-old has been doing something to their seven-year-old. They are devastated, they deal with it — a serious conversation, a lock on a door, a rule about being alone in the house.
Nobody outside the family is told, because telling means one of their children in a system and the other one's life on a record, and they cannot see how that helps anyone. Everything they are weighing is real.
A year later the seven-year-old is still living with it, the fourteen-year-old has had no assessment and no treatment, and neither of them has spoken to anyone whose job this is.
What the family could not know is what a report would actually have produced. In most of these cases it is an assessment, therapy for both children, and a safety plan — not a prosecution and not a removal. Handling it internally is understandable and it is the choice that most reliably leaves both children without help.
What to do
Notice. Don't investigate. Report. Refer.
Separate and supervise first, then report. Both children need to be safe tonight, which usually means not alone together — not a punishment, a safety measure, and worth saying out loud in those words.
Do not interview either child. Not the one who was harmed, and not the one who caused it. Both accounts matter and both are easy to contaminate.
Report to the hotline. Describe what you observed or were told, the ages of both children, and the relationship between them. Say plainly that both children need help — a report framed that way tends to route better than one framed as an accusation.
1-800-482-5964 — Arkansas Child Abuse Hotline, 24 hours a day. You do not need proof; you need reasonable cause to suspect. A good-faith report carries immunity from civil and criminal liability. The law, plainly
For parents of both children
If this is happening in your house, you are being asked to hold two true things at once: one of your children has been hurt, and the other one is also your child and also needs help. Those are not in competition, and a good assessment treats them both. This is one of the hardest situations a family can be in and there is a well-worn professional path through it — Children's Advocacy Centers and specialist clinicians see it regularly and are not shocked by it.