User blog comment:LuffyPirateKing/Luffy and his belly/@comment-1595565-20121021173205/@comment-1595565-20121021200430

Well, obviously he absorbed his powers, because he's still alive. Luffy has no way of safely intaking another fruit. He's rubber, not a sponge. Logias couldn't survive because the powers, when at conflict with each other, in turn cancel each other out prior to explosion.