Real facts about wet dreams, but it says only happen to
guys...how about any gers...what do they experienced?... 
[[When guys are
going through puberty, they sometimes wake up with a wet, sticky
spot on their underwear or pajama pants. It's not urine - but what
is it?
Chances are that this was a "wet dream" - something that can be
embarrassing and confusing to teen guys, but it's completely
normal. A wet dream is also known as a nocturnal emission.
Nocturnal means "at night" and emission means "discharge." This
makes sense because a wet dream is when semen (the fluid containing
sperm) is discharged from the penis during ejaculation while a guy
is asleep. Usually wet dreams occur during a dream that has sexual
images.
Wet dreams begin during puberty when the body starts making more
testosterone, the major male hormone. Although some guys may feel
embarrassed or even guilty about having wet dreams, they can't be
controlled voluntarily (that is, you can't stop them from
happening) - and almost all guys normally experience them at some
time during puberty and even as adults.
Reviewed by: Neil Izenberg, MD, and Kim Rutherford, MD
Date reviewed: June 2001]]