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.
No, they are not common. Hitchhiking itself is not as common as it used to be in many places due to safety concerns. And the idea of a specific 'wife sucks hitchhiker' situation in a negative sense is not something that occurs frequently. However, in the realm of fictional or very rare real - life scenarios, there could be some unique stories.
I'm not sure there are many positive 'wife sucks hitchhiker' stories in a proper sense. However, if we consider it in a more general way like a situation where a wife has an unexpected encounter with a hitchhiker that causes some sort of family dynamic change. For example, a wife might pick up a hitchhiker who then shares a very inspiring life story, which makes the wife re - evaluate her own life and her relationship with her husband. This could lead to some positive changes in the marriage, like she becomes more understanding and communicative.
I don't think they are overly common. Most wives are committed to their marriages. But it can happen in some cases where there are problems in the relationship at home. For example, if a wife is unhappy with her husband, she might be more vulnerable to the attention of a guy in a bar.