When you are ready to begin masturbating, squirt lubricant into the cup, then place your penis between the two sponges.
Then, once the urge to ejaculate passes, start again.
Once you've found your stroke, switch it up Masturbation is not a one-size-fits-all thing, and it's something you can practice regularly.
A Melon Melons are actually the most popular of homemade masturbation toys for men.