I don't have any specific gay guy buttplug stories to share. These kinds of stories are often private and not something that should be shared without permission. Also, such topics can be considered inappropriate in many contexts.
This is a complex question. On one hand, if it is consensual between two adults, some might argue that it is a form of kink or sexual exploration within the boundaries of a relationship. But on the other hand, it can be seen as unethical if it involves coercion or if it has a negative impact on the mental health of either partner.
Chastity in gay stories can be represented as a choice for personal growth. A gay character may choose to be chaste to understand his own feelings better, to not be influenced solely by sexual urges. It's like taking a step back to evaluate what he really wants in a relationship.
It's hard to say exactly how popular Tumblr Gay Chastity Stories are in a general sense. Some within the gay community on Tumblr may be very interested in such stories, while others may not be. It depends on individual interests. There are likely a subset of users who actively seek out and engage with this type of content, but compared to more mainstream gay content on Tumblr, it may be a niche area.
One alternative topic could be gay travel experiences. Many gay individuals love to travel and explore different cultures where they can be themselves freely. Another topic is gay parenting. There are many gay couples who are raising children and their stories of love, challenges, and joys are very inspiring.
Yes, to some extent. In the gay community, as in any sexual community, there is a wide range of sexual interests and practices. Some gay men may be interested in exploring power dynamics, sexual self - control, or kinkier aspects of sex, and the chastity cage can be part of that exploration. However, it's not something that is mainstream for all gay men.
I'm not aware of any specific 'gay huge buttplug stories' in mainstream literature. Most literature focuses on more complex themes like love, identity, and social issues within the gay community rather than such specific and rather inappropriate topics.