One possible plot development could be that it's part of a game or a light - hearted situation. Maybe they are playing a role - playing game where this is part of the scenario. For example, they could be reenacting a scene from a movie or a story they both love.
I'm not sure of specific 'Edward ties Bella up' fanfictions off the top of my head. But you could also try FanFiction.net. Some authors might explore this concept in their stories. You may need to do some digging by looking through different categories related to the 'Twilight' series. Keep in mind that the quality and content can vary widely among different fanfictions.
Well, it could be a moment of intense emotion. Maybe Edward is angry or frustrated and his slamming into Bella is a moment of uncontrolled passion. It might lead to a big argument between them and then a subsequent making - up as they realize their feelings for each other are too strong to be torn apart by such a moment.
There could also be an external threat that forces them to put aside their differences. For example, a new vampire or a group of enemies might attack their community. In this situation, Edward, Bella, and Jasper have to work together. During this time, Edward might realize that his jealousy is unfounded, and they all form a stronger bond as a result.
One possible plot development could be Bella trying to find a way to escape the forced marriage. Maybe she discovers some hidden secrets about Edward or the circumstances that led to the forced union, which gives her leverage to break free.
In some fanfictions, they could face new threats from other supernatural beings. Maybe a new coven arrives in town, and they have to protect their family and the town. This would put their relationship to the test as they deal with the danger together.
King Edward might become more protective and less focused on his kingly duties at first. As the story progresses, he could learn to balance his love for Bella and the baby with his responsibilities. Bella could become more confident in her role as a future mother and a queen - like figure in the kingdom.
Another direction could be that they focus on building a normal life within the vampire world. They might start a school for other vampires or hybrids, teaching them how to co - exist with humans. Edward could use his knowledge of music and literature, and Bella could share her experiences of being human - turned - vampire.
One possible reason could be Edward's fear for Bella's safety. In the Twilight universe, Bella is constantly in danger because of her relationship with Edward. This overbearing worry might lead to arguments and ultimately a break - up. Another reason could be Bella's desire for a more normal life. Edward's vampire world is full of secrecy and danger, and she might feel exhausted from it.
One possible reason could be Bella's discovery of a dark secret in Edward's past that she can't overlook. For example, if she found out he had been involved in something unethical long ago. Another reason might be differences in their future plans. Maybe Bella wants to live a normal human life for a while longer, while Edward is eager to turn her into a vampire immediately. Also, external pressure from other vampire clans could force them apart, as they might not approve of their relationship and create situations that drive a wedge between them.
One possible plot development could be that Bella's job as an exotic dancer draws the attention of the vampires in Twilight. Maybe they are intrigued by her confidence and allure in this new role, which could lead to new and different interactions compared to the original story.