Last night Heidi Klum dropped by the Tonight show and Jay Leno had a few questions about her recent Sports Illustrated shoot with Will Ferrell. Specifically: Whose idea was it for Will to bite Heidi's ass? Uh, Heidi's! Naturally. "Then all of a sudden his wife came," Heidi explains. Despite the racy shots (which Jay shows), Heidi says Seal "knows my eyes are only there for him." All this and more, in the clip above.