Kings of Leon are sometimes mature, but a great band.
Kings of Leon are one of my favourite bands, and not because of Sex on Fire. They have some depressing feel to songs though and they are sometimes sexual. I'm talking about all Kings Of Leon songs and not just this specific album. A few mature bits but its alright for pre teens.
the kings of leon's previous CD's; "Youth & Youngmanhood" and "Aha shake heartbreak" are in my perspective [alot] better than "Because of the times"
that reason being, it doesnt really sound like the original KOL. Now if you look at the present, the 4th KOL CD, called "Only By The Night" is breakthrough material and kicks the bajesus out of "Because of the times"