Basically Nami telling Ez not to give up after losing(again), Ez stepped on Nami's tail and slipped. They got into a compromising position and Nami could feel Ez's hard on. This was the first time Nami had turned a man on and took the initiative. A couple fish jokes while they were doing it. Nami had successfully lightened up Ez's spirit, Ez apologized about the sex and said he would pay fishie(child) support. Nami told him that was her arse.