"I was just thinking for a while now about how you managed to pack your penis into your underwear when it's so big and long. And I just found the answer to my doubt, which is that your penis is sticking onto your thighs while your boxers push down on it."
"With it running along your thighs like that, it wouldn't be a problem no matter how long it is." She nodded her head like she was taking down points for her research. "But at the same time, it would be quite uncomfortable for you to walk around with a rod-like object sticking on to your legs all the time when you get excited."
"It would also be quite difficult to hide its shape in public, and you'd have to be crouching around all the time because of that. And you'd be unable to wear any tight pants because of how easily it would showcase your penis."