If we look at different cultural art forms like paintings, music, and traditional stories, there is no sign of any relation to this phrase. These art forms are used to convey beauty, emotions, and important cultural messages, not something as inappropriate as this.
I'm not sure if there is a specific Naruto fanfic directly related to that. Fanfics can cover a wide range of themes, but such a specific and rather odd combination might not be very common. It could be something very niche or even not exist at all.
Preparation starts with mental preparation. You need to be comfortable with the idea. Then, get good quality lubricant. It's essential for a smooth experience. Also, make sure you are in a clean and private environment where you can relax without any interruptions.
Expect a lot of nervousness. For an amateur in such a new experience, the initial feeling is often being very on edge. There may be a sense of the unknown as this is something not commonly done at first. Physical sensations can range from discomfort at the start to potentially more comfortable as the body adjusts, but it's important to note that this is a very personal and private experience.
I'm not aware of any mainstream literature specifically centered around this rather unusual and inappropriate topic. Most literature focuses on more positive, moral, and general human experiences like love, friendship, and personal growth.
The significance of 'plug' in 'plug love a true story' is really open to interpretation. It could be that the 'plug' is what brought the two people in the story together in the first place. Maybe it was a job related to plugs, or an event centered around plugs. This connection, symbolized by the 'plug', then blossomed into love. It could also be that the idea of 'plugging into' someone's life, like becoming an integral part of it, is what the 'plug' represents in this love story.