Marilyn Manson and his 19-year-old girlfriend, Evan Rachel Wood, aren?t actually having sex in the video for his new single, ?Heart-Shaped Glasses? – or are they? Manson tells Spin magazine that James (?Titanic?) Cameron, who was in the director?s chair during the love scene, told him, ?I?ll worry about the sweet spot and you worry about the G-spot.?