It really does depend on your skin.
Mine, luckily, is quite resilient.
i'd advise you to test it out with a small patch first.
Tesco has a 1/2 price sale at the moment, and a tube for £2.50 (ish) will last you about 15-20 applications!
Rub it in, do something else for 5-10 minutes, wash and rub off!
However.... AVOID.... regardless of how tough your skin is..... the raw bellend (under the foreskin if you have one), and the anus itself. (it doesn't have any hair anyway!
A mirror is ALWAYS a good thing to have, and provides you with a good laugh at yourself when you catch yourself is funny positions!!! LoL
Afterwards... i like to apply the finishing cream!
Surprising how veeting etc makes you look an inch or so longer! (yes yes... doubling my length i know!!! LoL
Forgot to add..... It may "burn" a little. definitely bearable..... about HALF the intensity of that tea-tree/mint shower gel stuff, if anyone has used that?
Anything more than that, and i'd recommend washing it straight off and moisturising after.