7 Deadly sins of Organization 13
Lust
Marluxia never understood why that while he didn't have a heart he always found himself staring at random women and men as they passed. He was supposed to be unfeeling as his heart was stolen, but there was always something that felt like dirty love in his being. While Xemnas always remained unphased by cleavage that women showed, Marluxia couldn't help but want it.
Marluxia guessed this was his major fault in Organization XIII, because of this he would never be fit to be Superior of the Organization. Truly all Marluxia wanted was a hotel room, women, men, and a large bed. This would always make him happy.
Truly Marluxia was Lust, the first of seven deadly sins.