Roll-playing among couples are very trendy these days, and the sub/dom games are extremely fun for both players assuming they both play by the rules they agreed upon and not so that one becomes overpowered with a different set of emotions and become one of those men and women who keep their subs locked up in basements all over the cruel world.
The World of Vaginas and Penises!
The Vagina responds to thrill, positive and negative. If you have been in a long term relationship, your sex was probably much more intense and passionate in the first few weeks when you screwed around like bunnies until both your genitals were red, yellow and blue from all the usage. That was thrilling.
The Penis also responds to thrill, positive and negative. When a guy for example reach his goal in sports or business, the thrill of his accomplishments immediately translates to more sex-drive and a full phone-list of fucking good friends to celebrate with.
Cutting it short for now!
I will cut this article short, as I bet nobody will read it and it will just be a waste of time to continue right now. But however, if you are interested in more - please let me know in the comment below.