Cock Challenge
I wonder how much cum you still have in your balls? If it's not still in your balls, hopefully it's only risen up into your shaft and not leaked out your cockhead. Having hot cum in your cock shaft must make it feel so tight and ready to spurt. It must be even harder not letting it flow out because you're not allowed to flex and bounce your cock.
Oh well. That's what the cock challenge is all about.
For this challenge, we're going to alternate stroking the cock shaft and stroking the cock head.
Set the metronome to 210. On the Tabata timer set rounds to 9, seconds on 10 and seconds off 10.
Watch this video while completing the challenge. No stopping this time. Let go if you go over the edge and let it just flow out over your balls.
http://www.pornhub.com/view_video.php?viewkey=2735b87aa18c7948b2ad
Continue when finished.