Why/when does a guy's penis pulsate?

Like is it only when your hard or is it after you ejaculate? When I was kissing my boyfriend and sitting on his lap I felt it pulsate about 4 or 5 times, then it just stopped.
Updates:
+1 y
pulsating = spasm?
0 1

Most Helpful Guys

  • If a guy has a boner he can pulsate as many times as he wants, and no it doesn't mean he jizzed in his pants.

    • Are you saying that you can do it on purpose?

    • With an erection yes.

  • I think he did come in his pants. It only pulsates for me as I ejaculate.

Most Helpful Girls

  • They will do that while getting hard (very aroused) and again many times while ejaculating!

  • just part of having an erection, it also can happen during ejaculation.

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What Girls & Guys Said

0 3
  • What was going thru ur bf's head at that moment? The song: JIZZED IN MY PANTS!

    • Haha that's what was going through my head as I was writing this question

  • it doesn't mean anything

    i can pulsate my penis while hard, it's actually kind of easy to do and control

    • So why would a guy do it? is it kinda like the same thing like when a guy can move his pecs? just wondering because after a girl orgasms, you can fell like an extra strong heart beat down there that slowly fades.

    • I think it's kinda funny sometimes when I do it but he might just be doing it when you're sitting on his lap and making out to call attention to it - make you notice it and then you'd give attention to it

  • Pulsating usually occurs during ejaculation. From what you described, it sounds like you boyfriend came in his pants.