This is a very private and sensitive situation. First, you should try to stay calm. Have an open and honest conversation with her about your feelings, but also respect her privacy and needs. Maybe she has certain unmet desires in your sexual relationship that she is trying to fulfill in this way.
It can be a bit intimidating at first. You should make sure to use plenty of lubricant to ease the insertion. Start slowly and listen to your body. If there's any pain or discomfort that seems abnormal, stop immediately.
It's not common in most traditional relationships. However, in modern relationships where people are more open about their sexualities, it can happen. But it's important to note that if it makes you uncomfortable, it's not okay for your partner to keep it from you.
First, the children should be removed from the situation immediately to protect their mental state. Then, appropriate psychological counseling may be needed for the children in the future to help them deal with this shock. As for the mom, she may need to receive professional help to understand the inappropriateness of her behavior and make changes.
One way to overcome the shock is to engage in self - reflection. Think about your own role in the relationship. Maybe you haven't been as attentive to her needs as you should have been. Also, you can go for a walk or do some exercise to clear your head before approaching the situation with your wife.
It depends on the context of the relationship. If the couple has an open and communicative relationship, it might be completely normal. However, if they haven't really talked about sexual self - exploration, it could be a bit of a shock. But still, it's a normal part of human sexual behavior for a woman to use a sex toy.
Using a large dildo in a story can be quite comical. For example, in a fictional tale, a character might mistake it for some sort of strange weapon or tool. They could be in a panic trying to figure out what this huge, oddly - shaped object is, only to realize later it's something completely different from what they thought. It adds an element of surprise and humor to the story.
It's not appropriate at all. These kinds of stories are not suitable for general discussion as they cross the line of decency and violate the privacy and respect that should be maintained in a relationship.