Definitely not. Firstly, these types of stories are of a very private and often inappropriate nature. Secretly receiving them may also imply an inappropriate interest in sexual matters that are not meant to be spread around in such a furtive manner. Moreover, it can make others uncomfortable if they were to find out about this behavior.
It's completely inappropriate. Our society values privacy and decency. Secretly receiving stories about oral sex violates the principles of respect for others' privacy and the general moral code. Such content is not suitable for public or secretive exchange, and engaging in it may have negative impacts on one's own values and how others perceive you.
No, it is not appropriate. Such stories often involve private and sexual content that should be kept private and not shared or received in a secretive way. It goes against moral and ethical norms in most societies.