BDSM
This hasn't come up in previous threads yet . . .
Since we covered scene negotiation, I thought it might be a good idea to mention the equally-important "aftercare" that is often required after a scene has ended, and is a sign that you are playing with a good partner, either pro or lifestyle.
Usually, the sub/bottom in coming out of "subspace", which is almost a trance-like ("drunk" on euphoria) state following their endorphin high, and as a Dom(me)/Top, you want to make sure that they safely rise from the play equipment (legs might be wobbily, hands might need circulation, etc.), and pay particular attention to the dilation of their eyes, their ability to focus on you, their breathing, etc. They'll look a little out-of-it for a few minutes, and you have to stay with them to make sure that they don't hurt themselves. As we say, "If we break our toys, we don't get to play with them again."
This article is kind of an interesting read if you'd like more info. I've personally found that having a bottled water and a warm blanket nearby are usually the most useful items to help with that transition of out subspace. It's normal to feel a little chilly as the endorphin rush ends, and there can be profuse sweating, so the sub/bottom is often dehydrated. A good hug goes a long way, too. 
I'm guessing submissann can give an even better perspective on this issue.
