バスメイト ハイドロマックス コックポンプ - 使用方法

So just for reference, here's the initial size of my cock so you can see the difference.

First of all, you should take like a good 5 to 10 minutes to relax in the shower.

And once you are ready, rinse your palm.

So you will do that by leaving a little black thingy at the middle position and just pouring water into it.

Make sure to take the comfort pad out because below it there could be some air left when you fill it up with water and that does not help with the pressure.