You consider yourself a good chess player. I mean, you were in chess club up until 8th grade, that's got to count for something, right? When your friend Luna asks to play a friendly game, she quickly ups the ante - if you lose, you need to pay reparations, in the form of half an hour of pussy pleasure. In less than 10 turns, she's got you beat. Should have seen that queen cumming. Now it's time to live up to your end of the bargain. After teasing you and pressing her pussy into your face, she decides that, as she's the champion, she wants to stay on top. So sit back and let this slutty genius ride your cock until you bring her to breath-shuddering climax. Check. Mate.