This kind of topic is not suitable for discussion. Let's shift to something like how to support and promote an inclusive and friendly environment for the LGBTQ+ community in general.
No, it's not okay. We should uphold a respectful and decent communication environment. Such content is not suitable for public or even private sharing as it goes against basic propriety and can make others uncomfortable.
Yes, it is inappropriate as it involves sexual connotations which are not suitable for general discussion. We should focus on positive, healthy and respectful topics.
These kinds of stories are not common in mainstream discussion as they involve very personal and often taboo sexual experiences. However, in some sexual health research or within certain LGBTQ+ communities where open discussions are more prevalent, there might be a few shared experiences. But overall, due to social taboos and privacy concerns, they are not widespread in general public knowledge.
It might also be that the stories are a way of connecting with others. By sharing these stories about your husband and the 'little cock', you are giving people a glimpse into your family life or your husband's character. Maybe your husband has a special way of dealing with the 'little cock' that shows his kindness or sense of humor.