The awkwardness doesn't actually come from the body part itself—it comes from the social "link" between what we show and what society deems "appropriate." We are conditioned to view certain anatomical silhouettes as "private," so when they become "public" via a thin shirt or a visible piercing, it creates a momentary lapse in our social armor.
Socially, the visibility of nipples is often framed as an "awkward" situation: "Nipping Out" ankward nipple link
Sports bras with removable cups are excellent for smoothing out the profile of jewelry during high-movement activities. 3. The Psychological "Link": Why Do We Feel Awkward? The awkwardness doesn't actually come from the body