@daywithoutgames
Easy questions, easy answers.
"so let me get this straight : laurack was the wife of the lizard prince a few years ago -> got rap*d by the king -> changed her job to a brothel 's madam ???? -> has served thousands of customers , including the bratty MC -> but the prince still loves her ???? -> she gets mad at the prince in page 17 ???? because he is trying to cheat on her , while she already has served thousands of customers herself ."
She was the madam of the brothel. She doesn't have to personally serve anyone anymore than the head of a bank has to do check deposits. She even tells the MC that she's not some woman that can be bought by anyone. She's the seller, not the goods. The MC having his way with her is supposed to be based on his power of persuasion and sexual skill. She's also not mad at the prince for cheating on her. She's mad at him for abandoning her and taking the Otherworlder as his wife and queen when that's what he promised her. His answer is that the Otherworlder will have the seat of the queen, but she'll have the King's ear and favor. Something he contends is more valuable than an empty title.
"and what about the severed hand of the a$$hole MC ?"
The water magic (or white magic) includes healing. He couldn't use his magic while inside the barrier, but the pig pulled him out, at which point he'd have been able to heal himself. It could also be a hint of what's to come with him having already seduced the demon sister.
"so in these 5 days , what is exactly stopping the king or the prince from rap*ng sister 2 ? nonsense plot-armor , or is it plot-chastity-belt ? lol ."
The king believed it to be her time of the month and so waited until it would presumably be over. Having fun with the elf chick instead during that time.
"the maid is a spy of the prince ????? i can only think of 1 logical explaination"
The most logical explanation is that she felt disillusioned by the country where she was treated like dirt due to her mixed heritage. Her mother was raped and killed with no one caring nor helping. It's understandable that she'd be willing to go through hell to get her revenge on that country.
"- your job is stopping the king from rap*ng sister 2 , by letting him rap* you instead ."
Her job is to further the plan and that's what she's doing. Getting the king to r*pe her instead was most likely her own idea. It's pretty likely, given her backstory, that's she's been r*ped a number of times before. Before and after entering the palace. She's inured to it.
"- $ex slave : i want to kill the king .
- yeah , ok , fine , whatever . someone , remove her shackles , and then give her weapons and armors so she can kill our beloved king .
- king : why dont you six kill each other 1st ? then i will fight the last one standing .
- yeah , ok , fine , whatever . lets do this . wait a minute , do you think we are stupid ? and why should we follow the order of a coward , a liar , a faker , a lustful weakling ? and what is exactly stopping the six of us from gang-bang you right now ?"
They live in a country based on strength. A country where anyone can challenge the Top Dog for his position. The First Prince is making use of this, but so is the King. As it is based on strength, it stands to reason that the TD shouldn't have to take on all challengers, but simply the strongest. It then becomes beneficial for him to have as many challengers as possible. They'll eliminate each other, leaving a single exhausted challenger behind that the King can then easily dispatch. It is then understandable that the king would be willing to have the Otherworlder join the fray as well as her challenging him in the first place. It is also understandable that they don't all take him on together as that would destroy their rights to the throne and cause a crisis for whoever ends up ruling.