This might sound really weird, but plz don't judge me. Basically whenever I have a boner, I use my brain to imagine a machine. The machine consists of a spinning motor with a shaft that has some needles on it. The needles are bent at a slight angle and I imagine the needles going inside my dickhole and shredding it, causing extreme pain. However, the machine is positioned in a way that my dick only reaches it during a boner. Because of this, my actual dick loses its boner and turns smaller so it won't "reach" the imaginary machine.

I know it's really gross and u wanna downvote me, but it works most of the time. I tried other methods like flexing my legs, but they never work, only this one does