NY Post: John Edwards' mistress has revealed for the first time how the illicit lovers fell in lust and slept together the night they met -- and claims the presidential candidate predicted the wild romp would cause his premature ejection from politics. "Falling in love with you could really f- - - up my plans for becoming president," Edwards told vixen videographer Rielle Hunter after their sexual tryst at Manhattan's Regency hotel in February 2006. In her bombshell interview with GQ, Hunter says: * Her first words to him were "You're so hot" -- and they had sex later that night in his ho