Cum-eating Instruction (CEI)
If you did it right, if you ruined your orgasm, your penis should still be pretty hard. From now on until the end of the tease I want you to be continuously stroking your cock with one hand. Stroke as fast as you like - even though eventually you'll be able to reach an orgasm, it's going to take a lot of furious stroking, so go fast and hard, champ. If at some point before you reach the end of this tease you start getting close to orgasm, then slow down. Wait until I tell you to cum for the second time.
While you enjoy stroking your cock, look down at the prize it gave you. Mmm, the cum you already ate should still have it's taste in your mouth. If you cummed on your chest, it should feel nice and warm, slippery, with maybe a bit of more clear liquid running down one side. Using the hand that isn't stroking your cock, wipe up the stream sliding down your side and push all your cum into a nice puddle. Put your finger in it again and twirl it a bit. This is a delicacy that few get to enjoy, you lucky boy.
Pinch it so you get a glob that has the danger of dripping off your fingers; lean your head back and quickly lift your fingers over your open, eager mouth. Let the cum drop into your waiting mouth. So depraved! So sexual. Eating your own cum as you masturbate. This is heaven. You can't get better than this.