4. Scarlet Witch and Quicksilver get their incest on (supervised by Dad)

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This one's a little too infamous not to mention. In the original Marvel Comics, mutants Scarlet Witch and Quicksilver are prone to switching from bad guys to good guys, like their father, Magneto. In the newer Ultimate universe, they're still brother and sister, but they're prone to boning each other. Nobody in the Ultimate universe seems to think that their Lannister lovin' is especially weird -- most of all Wolverine, who actually saw them in the act from the bushes. And there's this thing about Ultimate Wolverine...

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See, around the time Wolvie admits his proclivity for peeping, he also recounts the time that he ran into Magda. As in, Magneto's wife and mother of Quicksilver and Scarlet Witch. Judging by the art, they met in the molten lava pit from the end of Terminator 2, while Magda was breaking her back trying to balance cantaloupes on her torso, and at some point after that they had sex. The implication being that Wolverine is probably Scarlet Witch's father, and willingly watched his daughter do it with her brother. And we're only on #4.

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