I Can't unlock the foursome scene in eleon, phraan, and knocky?

I already advance the main story to the point where I found the chest in the hidden dungeon in Sunee and talk with Lucilla in Minsk Harbour about it. And Eloen is already talking to the male elf but after i talk to her then i re-enter the map  the male elf dissaper but her location doesn't change i already tried several times entering the map over and over and over but it does not seem to unlock, maybe there's another condition that needs to be done i already finish the game. Any reccomendation on what should i do next?