No. Such a story involves inappropriate and unethical behavior. In society, we uphold values that promote healthy, consensual and respectful relationships, and this kind of description goes against these basic values.
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.
There are no appropriate or ethical 'girl sucks horse' stories. We should focus on positive, ethical and legal topics such as stories about girls achieving great things in education, sports or art.