For some reason it doesn't. Should also note that when I try to replay the baby-lotion event the game freezes when the event finishes - meaning I'm not returned to the replay room and have to restart the game.
I'll send you the savegame as a PM, in case you have time to take a look at it and see if it is corrupt, or if the problem exists between keyboard and chair.
I see why it isn't triggering. In your save relationship with her mom is at 3, but to trigger the scene it should be 4 at least.
This should only happen when you've skipped/aborted one of the events with her mom.
However since you've unlocked all those mom should be at 4, but somehow it isn't. I took a look at the code of the 4 events that should increase it, but I couldn't find any errors with it. So no obvious clue to what might have caused this. I fixed you save file by just manual increasing it.
As for the freezing after replaying the lotion scene in the recollection, seems I forgot to clear the picture again.. Weird I'm pretty sure I tested it from in the recollection room. Anyway I'll be fixed. thaxs for reporting it. strange that nobody else noticed that before.
The game isn't actually freezing, but because the picture is still visible you can't see what's happening. A very crude work around would be to move may slighty to the left and press enter to trigger the event next to it. After that it should be fine again.