The employee involved would most likely be terrified at first. He has crossed a huge line and now has to face the wrath of his boss. He may also feel a sense of responsibility towards the unborn child and the boss's wife. As for the wife, she could be in a state of panic, knowing that her actions will have a huge impact on many lives. She might try to find a way to reconcile the situation, perhaps by coming clean to her husband or trying to convince the employee to run away with her.
The wife might be shocked at first. If she has a more conservative nature, she could be embarrassed and quickly try to cover her husband up. But if she is more open - minded, she might laugh it off as a silly incident.
She would likely be horrified. It's such an inappropriate and violating demand. She might immediately try to get away from the intruder or fight back if she could.
He would probably be extremely angry. His trust has been completely shattered.
Some characters may panic. They are overwhelmed by the sudden chaos and destruction around them. They might run around aimlessly trying to find safety.
In this 'wife boss and stacked girlfriend story', the man would interact with his wife - boss with respect and a bit of fear due to her dual role. The stacked girlfriend's interactions with the man would be full of excitement and spontaneity. If the two women were to meet, the wife - boss would likely be very cold towards the girlfriend, while the girlfriend might be either defiant or intimidated depending on her personality. And the man would be in the middle, trying to smooth things over or running away from the whole mess.
One possible plot could be that the boss's wife has been in a loveless marriage. She meets an employee who shows her genuine kindness and they develop an unexpected emotional connection. This connection leads to an affair and she gets impregnated. Then they have to face the consequences, like dealing with the angry boss and deciding what to do about the pregnancy.
Society's reaction can be quite mixed. Some may be judgmental and frown upon it, seeing it as going against traditional relationship norms. They might assume there are ulterior motives, like financial gain on the wife's part.
Most of them are initially in disbelief. They might think that there is a rational explanation for the strange things happening around them. For example, if they hear strange noises at night, they first assume it's just the wind or some animals.
Well, it really depends on the characters. Some might be shocked at how they're portrayed in the fanfiction. For example, a heroic character might be dismayed if they're shown as a villain in the story. Others could be amused, especially if the fanfiction has some really out - there or comical interpretations of them.
Some characters rebel. They can't stand the oppression and fight against the system. For instance, Katniss in 'The Hunger Games' rebels against the Capitol. Others might be resigned to their fate. They just accept the situation as it is and try to survive in the best way they can. And then there are those who collaborate with the oppressive regime for their own gain.