The fact that on one side Max can make out with Lisa and grope her breasts and on the other side she shoos him away when changing or taking a shower does not make sense unless there is potential danger from Ann ...
Once Max progresses with the girls, e.g. Alice agreeing to naked punishment, Alice sleeping naked, naked Alice frightened by spider, all other events should be updated to respect this new level of corruption or less shyness, Alice being more comfortable being naked in Max' presence since she is getting used to it, especially when she is in highest mood and attitude.
BB_AS is not the only game where progress takes too long to affect everyday events with the girls, BB and Glamour were similar, however those 2 games by now have more content and the girls became much more lewd during everyday events, e.g. at some point in other BB games the girls did no longer object against Max watching them changing clothes or sleeping naked, they started being topless around the pool, Ann doing naked yoga, taking showers together, etc.
Since it is a sandbox game with individual events for individual characters and not some kind of real life simulation with universal mechanics, the dev has to implement all these new variations of existing events besides working on new events. Not upgrading older events to new circumstances will lead to an inconsistant game experience where characters behave shizophrenic. This is a question of priorities if the focus is set on adding new events or upgrading older events.
We do have the attitude/relation stat and the mood stat. I would guess that since there is no separate corruption or shyness stat, the attitude which is mostly raised per unique gifts and progress in opportunities should unlock more lewd versions of everyday events. (For example attitude from doing the dishes is capped at level 2, so there is no way to get to maximal relationship by just repeating basic tasks.) Alice is already at maximum relationship with Max and it is no problem to keep her in maximal mood, too. But currently this high relation has almost no effect on everyday events ...
If high attitude / relation does not have any effect except to qualify for progress in quests, this stat could be completely dropped and the attitude grind could be replaced by some simple grind quests.