An orgasm is pleasurable. We all know an orgasm is pleasurable for both boy and girl. If boy and girl orgasm together, it's mind-blowing. Probably the best sensation ever, despite what may come before and after it. If you're lucky, of course, before it came foreplay with someone you love deeply, and after it comes a wave of calm and relaxation, sinking softly into dreams and falling deeper and deeper in love.
Sometimes, however, the boy's penis hurts.
It's not always after sex. After all, during sex you're inside a nice, soft girl. Despite extraneous circumstances regularly discussed on So Graham Norton and also encountered by devoted boyfriends named after colourful mathematical constructs, it's not the usual thing to suffer an amount of discomfort during sexual intercourse. In fact, the aim of having sex is quite the reverse.
Nevertheless, it's happened to me after masturbation, and once or twice after sex: my penis stings. Not overly evidently, but almost always when I need to use the toilet after an orgasm. It's a sensation that's going to be common to any male readers (even though most of my readers appear to be girls, you never know!), and it isn't a pleasant one. Sometimes, because of the build-up of blood in the erectile tissue, it can even appear bruised.
The best way to get rid of this sensation (if you're not totally grossed out by this post by now) is to take a rather warm (even hot) shower while you are stinging, and pee while in the shower. (Don't be pathetic. Practically everyone has managed to piss in the shower at some point. It's even something of a ritual.) The sensation of the hot water cascading over your naked body is great, and the slight stinging pain coupled with the relief of micturating (seriously, it's a real word) abates very quickly while in this situation. Try it, it's fun. And for some reason, it feels great.
And, of course, you'll have just had an orgasm. Which also feels great.