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.
Definitely not. Our society values propriety and respect, and stories of this nature are not only inappropriate but also can make others uncomfortable. We should promote healthy and positive communication topics.
I'm not sure specifically what that refers to as it's a rather vulgar and unclear statement. It could potentially be some sort of unethical or inappropriate situation in a made - up or real - life story, but without more context it's hard to define exactly.
Most literature aims to promote positive social values, and topics like this are not part of the acceptable content in literary works. We should look for stories that are about love, friendship, and moral growth in literature.