Oh, good boy! I just love a man with control. Let your cock rest a minute or two and turn the metronome off. That precum dripping off of it is so sexy! This is really starting to get me going.
Have you ever tasted your precum before? If not, get just a little bit with your finger and put the tip of your finger on your tongue. See, it doesn't taste bad. Now suck on your finger a bit and lick it clean for me.
Whats that? Oh no, you don't HAVE to, but I think it'd be sexy as hell if you did it for me. I might even reward you later.