There is a cooldown for Stealing Homework, around 3 days. Susan is trying to protect Chloe and makes sure that the cooldown is kept (so Chloe's sore butt has some time to cool down?).
Emily's Shower & Bath : star 2 -> enter the bathroom at 21:00 before Emily has reached Corruption Level 1.
You can do this on the very first day of the game.
It is a good idea to do all the bath & shower events for Rachel, Chloe and Emily in the 1st week.
You can try
You must be registered to see the links
to temporarely lower Emily's Corruption Level. Emily is "cousin2" or "c2", so the variable should be called c2Cor.
Play until 21:00, save the game, change the value, do the event, save, change the value back to minimize colateral damage.
Be sure to have a good save as backup in case it does not work as intended. Use an unused save-slot for the manipulated downloaded file. (You can have almost unlimited number of save games.)