OK, if he says clean those 2 dishes or no sex, "believe me I also hate touching one or two dishes, it ain't worth getting my hands wet then dry over, feels like crap" he's obviously doing either: litteraly AVOIDING sex, or is USING YOU to do small chores here and there, something women abuse alot by the way :)
Keep in mind that those asking styles is for the average couple, yours is a rare case where the woman begs, and this guy's using it to his advantage...make him come for it.