Metronome JOI Game

I have a fun game for you! It's simple, all you have to do is jerk at the same speed as this metronome. Easy, right? Maybe. I won't be changing the speed too much throughout this game, but you aren't allowed to stop stroking. If you can make it all the way to the end, you get to have a normal orgasm! No tricks, just a normal orgasm. And if you fail? Well, it's going to cost you ^__^