There could be stories about a husband's hobbies and how they bring the family together. Maybe he loves gardening and the whole family gets involved in growing vegetables in the backyard. This kind of story promotes family unity and positive values.
Well, one story could be about a husband who always forgets important dates like anniversaries. His wife might plan something special but he fails to remember, which causes disappointment and arguments in their relationship.
We could say 'A story about a husband's behavior' which is a very general and appropriate way to start. This gets rid of the vulgar part completely and allows for a more positive or at least neutral discussion about a husband - related story.
To avoid such inappropriate phrases, one should cultivate good moral and ethical values. Think about whether what you are about to say is acceptable in a general social setting. Also, surround yourself with positive language environments, like positive - minded friends and positive media content.
In ancient myths from various cultures around the world, we find stories about the afterlife, the relationship between humans and the divine, and how to live a virtuous life. There is no room for such offensive 'guy sucks cock stories' as they go against the very essence of what ancient myths were created for.
I'm not aware of any positive or appropriate stories with such a vulgar concept in mainstream literature. Literature usually focuses on more positive, moral and inclusive themes.
Rather than delving into such inappropriate stories, we should encourage a society that promotes love, respect, and positive interactions within marriages. There are so many wonderful aspects of married life to focus on, like mutual support and shared dreams.
Another possibility is that it's a misnomer or a play on words. Maybe there was a misunderstanding at some point that led to this phrase being used in your family stories. It could be that a small item was thought to look like a part of a rooster in a very humorous and innocent way, and that's how the 'little cock' stories started.