Tongue and nipple - 8 wk. They all agreed it was a mistake to let a friend perform the procedure. This was by no means the only regret voiced. They also discussed costs of social rejections. Usually the hole is made with ear piercing guns or hollow needles.
Ear lobes are the simplest site, getting more complicated as the holes advance up the ear.
The tongue, being vascular, swells Nipple piercings penetrate some lactating ducts. Navel piercings often pull out because they are made superficially. Genital piercing, by both sexes, is done in a variety of places. The cosmetic jewelry often worn in ears is not suitable for body piercing. To avoid infections and allergic reactions inert, nontoxic metal such as surgical stainless steel, 14k gold, niobium, or titanium is recommended.