Personally, I'm a big fan of subs who tell you that "it hurts so much".
Yes, whining, crying, wailing, begging, whimpering is all nice and fun, but fuck, does it do something to doms when subs are so fucking articulatedly vocal about being in pain, about being close to their limit, on that thin line that turns them on just so perfectly and immensely that they wouldn't dream of using their safeword.
They're in pain and they're loving it and they're absolutely not too shy to tell you aaaall about it, so you better not stop keeping them in pain. Such a lovely and unique way of saying "Don't stop, I love it, I want it to never end".























