Most of the guys let it grow out naturally, with a few exceptions. Gavin keeps his closely trimmed, and has been known to shave Owen on occasion. James has thought on and off about shaving Ron as part of their play, but has never done it yet. Wes will sometimes shave all his body hair off, but then he’ll let it all grow back.
Nate has recently started shaving because he sort of intuited that Pax likes it better that way. He knows Pax would never expect Nate to have his body a certain way just for his own pleasure, but he did it anyway. Sam will have moments where he makes Henry shave his. Theodore likes the boys to be hairless or close to, so most of them only shave when he’s interested in them and stop as soon as he’s not. Sully, Erik, Edwin, Franz and Boey, and Travis are all natural all the time.
Boey got a wax done once and really didn’t like it. Joey is naturally not very hairy. Gabrielle only shaves when she has to, and Cordelia shaves most of her body hair every day (not her pubic hair, though). Isabella is sort of in between those two extremes. Frederick is very proud of what hair he’s managed to grow, and doesn’t understand why someone would shave that off.