Glee is more porn-like then Skins in my opinion. Or maybe it's because I like Skins way more than Glee. And I hate musicals (and I know some may think Glee isn't a musical but still).
I absolutely love the first two seasons of Skins. They are so amazing. Especially Maxxie and Chris:D Oh, and yeah, at least the pilot of Skins US is an exact copy of the UK version, with the exception of a few names.