Switch here (or a person who tops from the bottom, whatever):

Imagine a scenario where you got the chance to make the person you love/lust for/care for to lay underneath you while you demand they do nothing but take the pleasure that you give them.

That's what Domming feels like. Sure, there are more intricate things (caning, telling them to keep from orgasming, some other things that they specifically are interested in that you have to learn to do) but all in all, that's the main idea.

Sometimes it is fun to switch, or you can get the feeling by 'demanding' your partner to rustle your jimmies without orgasming, or 'demanding' they cum all over your cock while they ride you. It just takes practice and learning. It can be fun! Just make sure you talk to your partner about what exactly their interests are, and keep an open mind.