hi everyone. My two boys, age 6 and 4 won't stop messing around with eachother's areas. They dissapear behind the sofa, where they take off their pants and fiddle around with their willies. Once, when my husband's sister visited, they jumped out from behind the sofa completely naked. This problem is getting worse and worse, as they now touch my husband and I's private parts. We have talked too the boys many times, and given them timeouts, but nothing seems to work. Any suggestions?