EscapeEvade's answer will work, but you also might improve your chances of the scene(s) triggering based on who is on the island. By that I mean, since they are random scenes, the game is going to randomly select from available scenes that trigger when you are in the hallway. For example, bumping into Ivy or Faye as you round a corner, Lacey modelling her push-up bra, Jessica and Desire's lesbian scene as you pass by their door. There's a whole bunch, but you get the idea. If those girls are not on the island, those scenes shouldn't trigger. Juggle the roster of who is on the island to the minimum number of girls with the fewest hallway scenes and see if that helps.