, it may be because teens are looking for something to make them laugh . 
(ROOT (S (, ,) (NP (PRP it)) (VP (MD may) (VP (VB be) (SBAR (IN because) (S (NP (NNS teens)) (VP (VBP are) (VP (VBG looking) (PP (IN for) (NP (NP (NN something)) (SBAR (S (VP (TO to) (VP (VB make) (S (NP (PRP them)) (VP (VB laugh))))))))))))))) (. .)))
(ROOT (S (, ) (NP (PRP )) (VP (MD ) (VP (VB ) (SBAR (IN ) (S (NP (NNS )) (VP (VBP ) (VP (VBG ) (PP (IN ) (NP (NP (NN )) (SBAR (S (VP (TO ) (VP (VB ) (S (NP (PRP )) (VP (VB ))))))))))))))) (. )))