Yes, so long as you get every lust interaction up to that point. The one you are most likely missing is when you are getting ready before he comes back, you can change into underwear before he arrives. If he sees you in your underwear when he barges in you gain +2 lust reaching the 27 needed.Download RPGMakerSaveEdit and open your last save. Select: Advanced/ Edit Switches and Variables/ Variables and select No 101 (stat_lust) and change it. When you're done, File/ Save&Exit and good games