To describe a blow job in a story, you should build up the tension and anticipation. Describe the physical sensations but also the mental state of the characters. Make it sensual without crossing into the realm of pornography.
In general, such stories are considered inappropriate for mainstream literature due to their vulgar nature. Literature often aims to convey more positive, moral, and universal values. However, in some forms of adult - oriented or niche writing, they might exist but are not widely accepted in the broader literary community.
Well, it's really not okay. These kinds of stories involve private and sexual matters. In a civilized society, we should respect others and not spread such private sexual content in public. It's not only a matter of propriety but also related to moral and ethical values.
No way. These are personal and private matters between a husband and a wife. Exposing such details in public not only makes others uncomfortable but also shows a lack of respect for the relationship and the partner. It is not something that should be shared in a public or open forum.