What would it take in order to unlock an H-Scene with you?

http://s24.postimg.org/fw4w40gw5/mirage_2000_00300266.jpg A high enough thrust level... Hmm... For an action oriented game, it would require keeping me in your party to get the right dialogue choices. Eventually a side/personal quest would open up where we'd have to kill something big. When we set up camp during the long trek back, you get the option to ask for an impromptu sparring session. If you win, H-scene. Better bring lots of health potions and you'd better not be underleveled. In a traditional H-game instead of actual fighting you'll just have to click the right choice for counter attacks.

Maintaining a very high trust level, picking the right choice in conversations, regularly having a good score in various quizzes, acquiring a second controller for the following consoles; PS3, PSP, N64, Gamecube (be thankful that the PS1's and PS2's are compatibles), then sneakily picking the lock to the bathroom while I'm showering.