If you accidentally witnessed such an inappropriate act, the first thing is to remove yourself from the situation immediately. Do not engage or react in a way that might encourage the person. Then, you may consider reporting the incident to the appropriate authorities, like the local police if it happened in a public place.
One way to deal with it is to engage in relaxation techniques. For example, deep breathing exercises or meditation. This can help calm your nerves. Also, try to focus on positive things in your life and avoid ruminating on the incident.
Well, a common first time might be a bit fumbling. You're not really sure what you're doing at first. Maybe it happens in the privacy of your bedroom, late at night. You start to explore your body and figure out what feels good. It can be a bit nerve - wracking but also exciting as you discover something new about yourself.
It is completely abnormal. Such behavior is not only unethical but can also lead to a lot of problems in friendships and relationships. If a friend is doing this, it indicates that they have a warped view of sexual boundaries and respect. It can make the person whose girlfriend is in the story feel violated and can also damage the trust within the friendship.
The phrase 'wife watches stranger jerk story' is quite ambiguous. 'Watches' implies she is observing something. 'Stranger' indicates someone she doesn't know. However, 'jerk story' could be misinterpreted. It might be a story about a person who is acting in a jerky or erratic way, but it could also be a very local or personal term that we don't have enough information about.
It's not normal in the sense that it goes against the usual types of media consumption. But rather than jumping to conclusions, it's important to communicate with her. Maybe she stumbled upon these stories accidentally and didn't realize how strange they seem. You need to find out her real motivation behind watching them through communication.