By how he is acting about sex. Many older male virgins tend to either get too excited or very nervous when the subject of sex comes up. Also if you very openly flirting and being very sexual with him, his reactions will tell you it all, either he is experienced or not!
a penis
When his penis is insertted into a vagina
No male mammal is born without a penis - male cats included.
I virgin male has not had sex A NON-virgin male has had sex...a lot probably
Without measuring it or asking the owner you can't.
The male organ of copulation is the penis.
First, this is a poorly constructed, vulgar question. Second, no. The male sperm must reach the female egg for fertilization and pregnancy.
It is called the penis. Or in Latin, the phallus.
The male that has fallen victim to circumcision has no skin on his penis that can cover the glans at the top. The male with an intact penis will have a tube of skin that covers the glans penis, particularly when it is not erect.
A male dog will have a penis.
No.
If you're a female, your vagina will gradually close up as you get older to the point where you will not be able to fit ANYTHING into it at all. If you are a male, your penis will shrink and then go in on itself, creating sort of a vagina.