IME some girls come alive if they're allowed to do a little light dom - surprised me tbh.
But I go for slim
athletic girls, so chances of getting crushed or suffocated are ... slim.
That interests me because I'm a talkative chap; and, back in the day when I was a 'proper' punter - i.e. seeing lots of different SPs - I often said when I was setting up a punt, "... and if you think I'm talking too much, feel free to sit on my face." While I said it in a joky way, it was also my way of trying to explore my sub side.
But none of them ever took me up on it.
Perhaps I should have been more explicit.