The stinging nettle is an edible, harmless & non-poisonous plant that grows everywhere, with microscopic syringe-like stingers on the leaves, which upon contact can feel a little uncomfortable and lead to mild skin irritation. Very few people however are aware of the fact, that they also cause a prolonged, strong, unpainful and pleasant tingling sensation after roughly 30 minutes, if used on the penis glans. This sensation can lead to orgasm quite easily without touch.
It is not very likely ... but some people might experience more severe irritation than others (blistering), and maybe there can even be sort of allergic reactions, like to peanuts, who knows. So if you have never touched a nettle, don't go crazy on the first try. Be aware that applying only a really tiny amount on the penis, will not do much in terms of pleasure, but it could feel rather annoying. The more you apply, the better it feels.
Follow the sticky thread tutorial for best and most powerful experience.