My nipple piercings are 1.5 years old and still healing, just so you can hear a story from the other end of the healing spectrum.
If you get back to the cockpit and the nipples are bothering you, you could also try those fancy tegaderm bandages over them when they might get beat around, and then if that doesn't work, take them out.
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I just realized that there's a word for, "bizzare unwarranted affinity" in Casteallano. just one word.