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I'm a 24 year old mom and my 4 year old son likes to hump my 15 year old brother's legs.

When my brother is sleeping my son will go into his room and start to hump his legs.

I don't think this is normal, so I would like to know if this is normal, or do I have to speak to some doctor about it?

I know that he started doing it because he saw me and his father having sex a couple of times and he haven't stopped since then.

When I see him doing that I put him in time out, and when I ask him what he was doing he just changes the subject.

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Is he doing other "sexual" things? Is he doing it with other people? Somewhat related is this question your "situation" is of course way better, anyhow the second part of my answer there applies in your case as well: most chances are that your son (the 4 years old) just see this as an innocent game. – Shadow Wizard Nov 1 '12 at 11:22
I'd work on understanding what he is doing. If he's changing the subject then he's obviously embarrassed about it. You might try bringing it up sometime what it hasn't happened. Empathize with him and just try to understand -- no judgement. Worry about correcting the behavior another time... after you're sure you fully understand him and he knows that you understand. – Brian White Nov 1 '12 at 14:13
I second what Brian says. I don't think there's anything to 'correct' when he's not really aware of everything. Just something to teach (ie what not to do). And don't let him see you have sex! – Christine Gordon Nov 1 '12 at 20:34
But just to check, no one is going into your son's room while he is sleeping, right? Sometimes kids imitate what they know and this can be an indicator of a much bigger problem. Just something to be conscious of, unfortunately. – Christine Gordon Nov 1 '12 at 20:35
I think it is worth realizing that to a youngster they are looking at something that involves what might look like one person physically assaulting another who may be making noises that are hard to interpret and could sound like distress. This can be a little traumatic, confusing and impossible to express as the concepts and vocabulary are not there. As balanced mama suggested some discussion to reassure and put such actions in the realm of adults is probably in order. – Max Haaksman yesterday

While humping the legs of someone else isn't neccessarily normal, a little "self play" can be. As you said, he is imitating (or so he thinks) something he saw you doing.

First, since he is so young, it is likely he doesn't really understand what he saw. He might think it is one more way to show his uncle he loves him, or a type of game or any number of things so punishing is not likely to help as it is probably just confusing things further.

The first thing I would consider would be a discussion if you haven't had one with him already. This discussion should take place at any time when you can take your time with him and when it is not inspired by finding him in the act of humping your brother's legs. The fact that he is changing the subject is a sign he is embarassed and/or confused. He may not fully understand what he is doing and why.

At a separate time, Ask him if he has any questions or thoughts about what he saw you doing. Not to accuse you of anything, but you probably acted embarassed when he saw you (I know I would) and maybe haven't taken the time to answer his questions. Create the time now. If he tries to change the topic, chalk it up to he doesn't have the vocabulary or self-awareness to express himself about it.

Then, you might try explaining what he saw. You can talk about sex with a child of any age and explain it is how babies are made, that it is something adults who love each-other very much do, but that you have to be ready for it and no who is four is ready for it. Or, if that is too uncomfortable for now, you can explain it with something along the lines of calling what he saw a "special hug" between two people who really love each-other. It is important to include that this hug is shared in private and that it is for people who love each-other in a way that is different from how a nephew loves his uncle or a mother loves her son. It is a type of hug that can only be given between two people who BOTH agree they want the hug (your brother, of course, doesn't want the hug). You might also put an age on it to indicate that it is a hug for adults so he doesn't start asking preschool mates to join him in a "special hug".

The second thing I would suggest, again, if you haven't already done so, is only participating in "special hugs" when he is out of the house or you are on the other side of a locked door. Your son simply isn't ready for viewing this activity and it has shown in how he is behaving after viewing you. Help yourselves out by taking steps to avoid a recurrence.

If he begins engaging in "self play" he has discovered a new "toy" as it were. The sensations he feels are not the same as the sexual sensations an older boy would have, but he has now discovered a new feeling that he is experimenting with and figuring out. If that occurs, please don't punish him, just encourage that certain activities are done in private (like going potty) and so if he needs to explore he should do that when he is alone and in private (like his bedroom or the bathroom). Then, try not to worry about it too much. Good luck.

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