I don't think they are common. Literature typically explores a vast range of human experiences, emotions, and relationships. However, this topic is rather extreme and not in line with the values that most literature tries to uphold. There may be some rare and very specific works that might touch on it, but it's not a common theme at all.
The ethical implications are significant. Firstly, it can promote non - consensual or inappropriate sexual behavior in a way, by normalizing something that is not acceptable in a moral society. It also violates the privacy and respect that should be given to people's sexual experiences, especially when presented in a story form without proper context or respect for boundaries.
My first time with another man in a sports competition was quite memorable. We were on the same team for a relay race. I was a bit nervous as I didn't know him well before. But when the race started, he passed the baton to me so smoothly and gave me an encouraging look. I felt a sense of trust immediately. We worked well together and managed to get a good result. It was a great experience that made me understand the importance of teamwork among men.
First, communication is key. Sit down and have an open and honest conversation with him about how you feel. Try not to be judgmental right away. Second, give yourself time to process your emotions. It's a big shock and you need to figure out what you really want. Third, consider seeking professional help, like a relationship counselor, who can guide both of you through this difficult situation.
It can be extremely difficult. First, it's important to communicate your feelings. Maybe it was a misunderstanding. If it's a planned situation like in an open - relationship which you were not fully aware of, you need to re - evaluate your boundaries and what you are comfortable with.