What does the inside of a vagina feel like to your penis?
You cannot imagine it I am sure. Try this, sandpaper your finger until nearly raw and very sensitive. Now place a whole calves liver in a baby bottle warmer. When the liver is up to temperature, cut a small slit in the flesh and slip your highly sensitized finger in there.
It feels like a thousand times better than that.
How much pressure can be applied to testicles before it hurts?
Probably different for each guy. For me its is none. you can gently lift them, but any more than the slightest pressure is uncomfortable.
Okay, additional question: the how the hell do you wear clothes or walk or play sports?
Boxers (or commando) most of the time, but "lifting them gently" as in a jockstrap is ok. Some girls want to squeeze them like they are checking a plum to see if it is ripe. That's a no-no for me. Clothes and underpants don't usually squeeze, they just lift, except speedos and some whitey-tighties, which can bang the boys together like a rack of Newton Balls.
I ask the same question, those guys must be either nutless or numb.
I already know the answer and it is sad
The answer is: I don't know, I just feel like it.
The question usually starts with "why do want..."