This is a linkpost for http://johnsalvatier.org/blog/2017/submission-and-dominance-among-friends
I like what you wrote here, but I feel like you and OP are talking about different things. For you, such experience is a traning for situation when someone tries to knock down your status for real, so that you are ready to defend yourself. For OP, it is an experience that feels nice.
play feels nice doesn't seem separate from play is probably useful.