If the videos there are taken from cam4, then the same situation with cam4, because the same boys = the same age, aren't they? But if the boys at cam4 are 18+ then they are 18+ at website you're talking about. The are the lot of similiar websites on the Net today - boyztube.com...
Hi, I had the same problem with video hostings. Just email them with the link to video and ask to remove it as a copyright holder. It should take not more than 48 hours
good luck