Personally I just frisked and searched her breast, pussy, anus and buttocks on every opportunity until the game disallowed me to do so again with texts like "To check what she's hiding I'd have to take off her <piece of clothing>" or "I can't keep teasing her, time to pick up the pace". I don't think it increased arousal, but I also patted her and touched her abs and tada, done. We honestly get enough credits (close to 150 I think?) to don't worry about wasting them, just keep touching.I just can't figure out what I'm missing with Laura, can't fill the bar up completely. Missing one "block".
As a side note, great update. Not only VERY hot, but I also love how that goofball Laura had so much character development done. I'm so damn glad I gave this game a chance, despite femdom not being even remotely close to my preferences.