Could be a circulatory problem. Have a word with your doctor. It is DEFINATELY NOT NORMAL!

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my ex-boyfriend used to do that in the bath tub,like as a trick.i dont think you should be able to do that for long peiods of time,no.

-dirt dobbler

thats f*cked up m8 id see a doctor either that or u have a very small penis

no

holy shit how is that a joke, violent!? you are not supposed to be able to do that!