Do you mean "Why is the tip of your penis inside your foreskin?" Or do you mean "Why is your entire penis inside your body?" The foreskin covers the tip of the penis to provide protection for it. A penis that is entirely or mostly inside the body is called a "Hidden" or "Inverted" penis and this condition is geneally a direct result of being overweight or obese. The penis is actually normal but is partially or wholly buried by excessive body fat. The obvious remedy for this condition is to lose weight.
It is inside the penis. It goes from the bladder and out through the penis so you can urinate.
No
It doesn't have to, but the majority of sex involves the penis inside the vagina.
What I think you are describing is just fat crowding around the penis and making it look like it is retracted inside. That is not bad for you.
Honestly... A penis is ment to be stuck inside if a vagina!! what else can you use it for?
PENIS
no. of course not only if you had sex, meaning his penis was inside of you
You get many penis's inside your butt, until death.
Yes. You will rarely see your turtle's penis, however, because he keeps it inside his tail. Turtles have a vent in the bottom their tales to hide their penis'.
he forgot to bring it inside?
Yes, but just like their penis it is inside them.
its the best feeling on earth.