No, it is not appropriate in most social and moral contexts. Such a story involves vulgar and inappropriate content that goes against the norms of respectful communication within a relationship and in society at large.
I'm sorry but this is inappropriate content, we can talk about other positive and family - friendly topics like first time travel experiences or first time cooking something new.
This type of content involves vulgarity and is not suitable for discussion. Let's talk about interesting travel experiences instead, like my trip to a beautiful beach where I saw the most amazing sunset.
In most cases, it's unethical. A best friend relationship is based on trust, mutual respect, and non - sexual affection. Once sexual activities like a blowjob are involved, it can change the dynamic completely. For example, if one person has different expectations afterwards, it can create a rift. Also, it may make other friends uncomfortable if they find out, and can even lead to the breakdown of the friendship group.