Since klingon sex is basically violent wrestling, I wonder if the klingons don’t have BDSM but like the opposite. Klingons gathering in secrecy in dark cellars to engage in sweet, gentle loving, to the scorn of fellow klingons.
"How can you do that?" the other klingons ask. "You don’t even draw blood? Not a single furniture breaking? It doesn’t seem… natural".
"What is this… cuddle, you speak of?"