It cleans out your uretha and lubricates your penis for sex. It's normal.
Having liquid drip out of your penis when you're erect and sexually excited is completely normal. It's call pre-ejaculatory fluid, or more commonly "precum". Most men get some of this fluid when they are sexually excited. Or you may be describing semen, which is ejaculated from the penis at orgasm. The penis becomes soft after ejaculation. This is also very normal. If your foreskin is tight and can't be pulled back, then you can try gradually stretching it. Search Wikianswers for "How do you stretch your foreskin?" for more information.
His penis will erect.
They get.. excited and hard.
He's excited. it's normal.
when your penis muscle gets excited!! hahahahaha
He is getting excited
Semen. That is what can make you pregnant.
It is normal for the glans (head) of an uncircumcised penis to remain slightly moist, as it is protected by the foreskin and kept moist. A few drops of urine may also drip from the penis in the minutes following urination. While erect or during periods of sexual excitement, it is normal for a clear liquid called pre-ejaculatory fluid to sometimes drip from the penis. This is normal. However, if your penis has an unusual discharge or fluid, you should see your doctor, as this may be a symptom of a medical problem.
When men get excited they have erection(penis) similerly girl have nipples tighten.
just like you fill air in tyre tube when you are sexually excited your penis has spongy like tissus which fill with blood and your penis get hard after some time it start shrunking and obtaning its orignal position
You go and see the nearest doctor... something is probably wrong, whether it could be as little as a cut inside your penis, or something as serious as cancer. Seriously, just go to the doctor.
most un-neutered dogs will experience this. it is completely normal, he is excited, sexually. the "red crayon" is acually the penis, what you think is the penis is actually called the prepuce which is the sheath that covers the penis.