There should not be such inappropriate stories in proper literature. Most literature focuses on positive values, moral lessons, and healthy relationships. Such a disturbing concept goes against basic ethical and moral norms, so it is not likely to be a common theme in mainstream literature.
Society as a whole can play a role. When people in a community uphold positive values and shun abnormal and unethical behavior, it becomes less likely for such disturbing ideas to spread. Also, promoting positive family models and healthy relationships in various forms of media can help shift the focus away from such inappropriate concepts.
There is no evidence to suggest that such activities occur in a gym environment. Gyms have rules and ethics in place to maintain a proper and respectful atmosphere for all members. This kind of description violates the basic norms of a public fitness place.
I'm not sure what specific 'grandpa cock stories' you mean. It could be some family - related stories about an old rooster (cock) that grandpa had on the farm. Maybe it was a rooster with unique behaviors like waking everyone up very early every day or being very protective of the hens.
It depends on how we define'mom sleep sucking stories'. If we think about moms who breastfeed their babies at night and are often in a state between sleep and wakefulness while the baby is sucking, then it can be considered common. Moms are usually exhausted, and their bodies adjust to respond to the baby's needs even while they are sleepy. There are many such stories among new moms where they might not fully remember the details of the night feedings because they were so tired.
This kind of description is unacceptable. Society has moral boundaries, and we should focus on positive, healthy and ethical topics instead of such disturbing and inappropriate ones.