Rogue/Logan, that takes me back. When he's cradling her unconscious body atop Magneto's mutation machine at the end of the first movie, completely destroyed by even the possibility that she's dead... Chills, dude, seriously. There were all kinds of epic romances for them on adultfanfiction.net, IIRC. I suppose the comic canon demanded Jean/Logan, so that's why they went in that direction, and from the very little I remember of X2 I'd say they'd shifted much closer to a sibling-like relationship, but in that first movie... Yeah.