It does sound a bit gross, but body hair for your sims helps to make them much more realistic. Here are the body hair overlays and hairy skintones I’ve found.
This first one is by aikea_guinea of Club Crimysn. It’s recolorable and can be downloaded here, under “Accessories”.
This large set of recolorable body hair, made by PanthroSamah, can be downloaded here. There are eight in total.
The first two pictures show a custom skintone by TummyZa of Garden of Shadows. He or she also edited PeggyZone’s male skintone, making it hairy, which is shown in the last two pictures. The advantage of these is that all males will have body hair, while the disadvantage is that it can’t be colored or gotten rid of. Anyway, both of these are available for download here at Garden of Shadows.