This illustrates and expands on a letter. A young woman tells you how she learned about cock-teasing, and then she can't resist teasing you a bit...

Your sexy wife looks on your computer and then starts making requests that lead to you becoming more and more totally devoted to her pleasures, while denying your own.

Caught stroking, you're now her entertainment! You had better hope she enjoys the show...

Your sexy astronaut partner plays a game with you, while you two are alone on Mars. In the game you only get to cum when you pay a negotiated price in beads, and you only get 4 beads per week.