A few days pass by

A few day pass by after the last spanking. The next day of the event, Michael knew about what happened in the bathroom to her poor big sister.
Emma cried till midnight when she fell asleep due to tiredness. And the next day didn't gave up and tried to research way to fool the machine. Asked about these rule and what these are, found out she was in big troubles there were rules of all kinds, written by her mother yes. But they became more a joke than a real thing cause nobody were really following those at the time so she added things she never thought someone would do just for fun, like:
rule 67 you have to pour first the milk and then the cereals
Or
rule 85 birthday spankings are a must
There are also rules added by Emma when was trying to enforce her right on her little brother like:
rule 34 the brother in charge has full power on the other one
And rules written by Michael just to vent frustration like:
rule 128 Emma has to shut up when other people speaks

Emma took a some days to read every rule trying to learn them, she obviously failed. During these days everything gone smoothly and nothing peculiar happened. When she needed help to reach high drawers or to move something, Eve was there to help, Emma was even getting used to her presence.
Emma has gone to the bathroom for her bath, Michael and Olivia are on the couch, he's on his phone, she's reading.
"So even this time Eve is bathing my sister with the door fully open?..."
Olivia take a look on his son
"Probably, those are the rules"
"Okay. . . . I'll be back in five minutes"
Olivia take another strange look on his son, he isn't moving like he is waiting for her to stop him. But nobody says a thing, after some time he stand up and reach the first floor, Michael see the opened bathroom door and hear noise coming from there. Someone was surely inside, Michael sneaks up to the door, there she is for the first time her sister's naked body, sitting in the tub. Michael can clearly see from the chest onward and the view is beautiful, her sister is 23 years old, her body is astonishing with perky boobs and a great ass. The only reason she didn't got a boyfriend yet is because her shitty behaviour is always too problematic, but this behaviour is gonna change soon.
While Michael is spying on his sister'bath his mom decide to intervene. Passing her son and entering the bathroom shouting
"Everything fine here?"
Emma clearly reacted covering her chest
"Me and Michael were wondering why is it taking so long. Is Emma showing down everything with her tantrums?"
"Not particularly madam, but the patient won't let me wash particulars zones without without me reminding her last spanking"
"This shirt is new, I can't let it get wet. I can't help you, but Michael can. Come Michael!"
"What? That dork is here??!"
Michael stop peeking and enter in the bathroom, while the mom rush against the girl grabbing and pulling her ear enough to hurt.
"Listen little girl. There are rules in this house that you have to follow, one of them is to respect your brother. What do you wanna do, do you prefer the other option maybe?"
"No no, okay I'll respect him, I'll respect him a lot, don't pull it!"
"Good girl. Now Eve, let Michael wash his sister, let's see how the girl react"
"Yes ma'am"