The bombs did the trick so thanks for that. No I don't have any of the other girls naked yet. It seems like that may all be story based. Did you ever figure out how to interact with the girls? The game said something about that early on, and I never figured out what that meant.
Ah this is one of those *not quite* missable event thingy:
-Laura: 1st chapter event, not missable
-Sandy: interact with the weight scaler and chose her
-Cindy: interact with the locked door North side pool interior
...
don't remember much after this but it should be easy to find out yourself. To interact with girl, chose Gary skill Interact and chose a girl. Remember to spend all your Brain,Heart,Finger items on them as soon if you find them, 2 times at a time (after some battles you can give them gory items again). Somewhere between 500/550 Love/Obedience points, you can give command Kiss/Spank which net more points for the girl than normal command but irritate them to high heaven (need more battle to recharge).
Of course you can ignore all this and complete the game normally. I myself live for the thrill of completionism.
Characters can all so unlock skill points after a certain number of kills/battles, I can't fathom how fragile character like Laura or Cindy can get their skill points with their almost non-existant battle skills lol
*note: you can in fact use only one bomb (keep another for later) to destroy the chapter 2 boss:
-Boss: somewhere between 4600 and 4900 HP (which is insane, more than chapter 3 boss)
-Gary: First Skill - over 800 damages
-Laura: Vintage Shotgun - over 500 damages
-Sandy: Second Skill - over 500 damages
-Nancy: Bomb away - 1900 Damage + can cause bleeding
-Bleeding: over 900 damages - from Bomb or follow up attack by 3 girls (2 of which equipped with cutter and shackle)
-Follow up attack : close to 100 damages if at least 2 girls participate in the attack.
This easily kill the boss 4/10 times, otherwise you will have to reload from autosave becuz you didn't receive blessing from Goddess of RNG.