Haha, this is exactely a picture of your situation, isn't it? Mmmm, its so hot. Can you feel the warmth of your own sperm on your dick? You love it don't you.
DO NOT close this tease no matter how much your 'urge' went after you came. Don't worry honey, it'll come back, and thats when it will get even filthier!
Take the condom off your penis. Be extra careful not to lose any cum. Are you holding a cum filled condom in your hand right now? Stick your nose inside and smell it. Smell your cum.
Now set the filled up condom in front of you. Put it wherever you had it before you came.
Continue.