LOL, thinking with portals.
like this.

I can't actually believe I worked 20 minutes on that, but I actually did. So, in all fairness, I believe i should put it here to be seen by the wandering Newgrounders who visit my humble profile. Enjoy.

Ever felt like fapping when you saw a good chick, but you were in a mall or some crowded area, so you couldn't do it? Portals fix that.

And yeah, it's a cock joke BTW.

And...

doo doo, do doo doo, dodododo doo doooo...

Rickroll'd