Why do guys get sleepy after a blowjob?

[Anonymous]

Last night I gave my boyfriend my first blowjob. It didn't take long for him to cum. I'd say about less than 10 minutes. Anyways why do they fall asleep? Thank You.

[chocolatedragon]

Sperm is healthy because it contains lots of nutrients that are pulled from the ejaculator's reserves. When a guy ejaculated, he's significantly drained of certain nutrients and it ends up weakening him to the point where he may consider sleep to recover his load. You could also think of this as nature's way to prevent a guy from trying to impregnate too many women. So nature knocks him out saying job well done.

But most guys won't fall asleep unless they want to. They can always ready themselves up for a second round after a min of 30 mins which is how long the refractory period is. If he goes in again before 30 mins, he will need more stimulation than usual to cum again. But I'd he waits 30 mins, he will need more or less the same out of stimulation to cum.

[chocolatedragon]

Thanks for MHO!

[VanillaSalt]

wth woman... an orgasm forces every muscle to expand and contract... ude be tired after a good 10 min of a good bj and orgasm 2 :P

[TheoryOfAvarice]

Maybe he was already tired to begin with?
Plus having an orgasm can make you feel sleepy, this goes for girls as well, especially when you're tired or lying down and feel comfortable and the orgasm is satisfying...

[Justaskme88]

Its a chemical released in the brain after an orgasm. Plus like the other woman said, comfort, satisfaction etc all leads to feeling sleepy :)

[stevie123]

After orgasm, there are chemicals released that cause sleepiness.
So they get sleepy after sex, too.

[Shpongolia]

His serotonin and testosterone levels have all been released. That drains lots of energy out of a guy.

[TadCurious]

When a guy has an orgasm, neurochemicals are released in his brain that induce relaxation and can lead to sleepiness.