I don't know how to code, but it should be fairly easy for me to write if people like the idea,
Have the option to allow the snake to just stay on your cock suckling happily away at all times, going between your legs (or around like a weird half belt) causing a similar effect to the hardlight anti-grav thong though for your penis... obviously it would let go when you want to use it, though realistically considering it is a parasite once you allow it free access like that I doubt it would let go or stop without a fight (perhaps a willpower check like with the butt bug? a rather high one to make it stop but a significantly lower one just to use it during a scene) not leading to a bad end but rather an inability to use your cock unless you remove the snake using v-ko,
Have the option to allow the snake to just stay on your cock suckling happily away at all times, going between your legs (or around like a weird half belt) causing a similar effect to the hardlight anti-grav thong though for your penis... obviously it would let go when you want to use it, though realistically considering it is a parasite once you allow it free access like that I doubt it would let go or stop without a fight (perhaps a willpower check like with the butt bug? a rather high one to make it stop but a significantly lower one just to use it during a scene) not leading to a bad end but rather an inability to use your cock unless you remove the snake using v-ko,