Will my vagina be leaking water throughout the day? The water pressure needs to be fairly high, but if you kneel in the tub and get your penis as close to the faucet as you can, you can learn how to "penetrate" the water stream. A rare-but-serious thing that can happen is an Masturbation with water faucet embolism. What other things can happen? Bring a butt plug with you in the tub along with your favorite lube, relax a few minutes under the warm water maybe use the shower head for a nice orgasm and insert the Masturbation with water faucet plug slowly, exploring the sensations. More of your questions answered by our Experts.