The thing is.... It's pretty much impossible to urinate while having sex / masturbating un...

I love how this comment was both informative and supportive.

Actually it is possible. While it is true that the muscles contract to halt the release of urine, some men are still able to pee when the penis is fully erect or semi erect. It doesn't mean that there is something wrong with them. Some say it's easy for them to do and others say it takes effort and then there are some men that absolutely can't do it. But overall, it is a possible scenario lol You could learn more about it if you search the web. (:

While erect/ semi erect, yes of course it's possible (albeit with difficulty and very slow release) . But during sex or masturbating, those muscles contract further and it is intended to be impossible because the body is preparing for ejaculation. So while some (few) men can still somehow urinate during this time, it means their body isn't working as designed and they have abnormally weak muscles in the necessary region to block the bladder.

Now, even with an abnormally weak muscle contraction, urine would come out in a very slow trickle because the pathway is still constricted from the erection alone. To pee the sheets as Yuuta did, he would have to be completely flaccid because the muscles would have to be relaxed for an unobstructed flow of urine.

I'm not knocking you, I'm just saying that this is something most men do not (and should not) have a problem with and there is much more that goes into it that would make the scenario in the manga very unlikely.

While I do agree with most of your statement, the only problem I had with your previous statement was that it was "impossible". I understand how the mechanisms work, but it is still entirely possible for men to pee while fully-erect/semi-erect (and there are many men that have done this), whether it's due to another condition or not.Of course I'm not saying you are wrong, but this scenario isn't 'not possible'. Like I said, I agree with everything you said, just not about the part about the 'unlikeliness' or 'impossibility' of the scenario. Everybody's body is different and that doesn't necessarily mean that they have something wrong with their body. Let's just agree to disagree lol If anything, we both agree that the manga is awesome :)

Haha alright I understand where you're coming from. I guess my wording could have been more clear.

Regardless, I love Tanaka sensei's couples so much <3
...But less weird pee situations and more cum-shots please LOL

Even if it was impossible to pee while being fully erect, the thing is Yuuta wasn't erect at all. You can see it when hes on top and later on as well. Also the point is that Shun is so big that he hit Yuutas bladder and thats what made him pee. Its not like he let it out on his own so the whole muscle contraction argument may not be relevant here. And who cares about correct body function in BL anyway, this stuff is like my no 1 kink and I'm so so grateful she draws it at all, bc its so rare that its basically non-existent lol

Totally agree with you. Morning wood would be terrible if that was impossible.