Why does a guy's penis twitch/flinch?

[Anonymous]

Just wondering. It happens quite a bit.

[AleDeEurope]

Excitement makes it flinch. When a man is getting an orgasm his penis flinches during the orgasm and seconds after it.
It could also be the guy who's making it flinch.

[Asker]

Sometimes he does it on purpose.

[MissMarvelous]

Guys can make it flinch? Cool. How though? Is it like a kegal exercise for men?

[AleDeEurope]

I don't know why we do it, but I also sometimes flinch it on purpose, it's funny to watch, and if it's in front on the girl, she'll find it funny too xD

[AleDeEurope]

@MissMarvelous Exactly like a kegel exercise. When you contract the PC muscle, the penis flinches.

[MissMarvelous]

That is so awesome. Is it weird that im amazed. I think I've seen it in a p*rno once. But i didn't know it was done purposely. Haha And ugh... i dont watch p*rn. It magically popped upon my cell phone once.:) Thanks for the new info.

[AleDeEurope]

@MissMarvelous Sure... it magically popped up hahaha xD

[Aust_Siannodel]

His penis is reacting to being excited by flexing. It's the human male equivalent of a dog waging its tail.

[MrMuffinMan]

I sometimes have fun flexing my muscle when I am bored. I can make it twist in circles. I have tried putting small weights on it and flexing and that can be an equally fun way to cure boredom. I don't think it has made it any stronger though...

[justbanANNAz]

that is so cool :O

[sawno]

I don't know the biological reason why it happens , but it happens when its recently been stimulated or we are insanely horny.

[Asker]

Thanks.

[sawno]

To answer your comment on someone elses opinion. Yes its a good thing! Its a sign of intense pleasure similar to your vaginal contractions.

[JackKerouac77]

Because there's blood pumping through it at whatever that guy's heart rate is at.

It's actually kind of fun to watch.

[Asker]

It is. Is it a good or bad thing?

[JackKerouac77]

If it's not twitching slightly, then the guy is most likely dead. So it would be a bad thing.

[BillieJean1070]

I think it's an involuntary reflex.

[Tokana]

lol It depends, if its random, then it simply him flexing his muscles. If he's getting excited then its just blood getting pumped into it.

[Ihav2fart]

When I get a boner I can make move. It's for funnnn.

[Jazzy_Abz]

Wiggle wiggle wiggle wiggle wiggle Yeah!
Wiggle wiggle wiggle wiggle wiggle Yeah!
We do the wiggle man!
We're sexy and we know it (;