I sometimes wake up with a wet, sticky spot on my underwear or pajama pants. It's not urine, so what is it? Chances are that you had a "wet dream" — something that can be embarrassing and confusing, but is completely normal. A wet dream is when a guy ejaculates or "cums" while he's sleeping. During ejaculation, semen the fluid containing sperm comes out of the penis and this is what you noticed on your underwear or pajama pants. Wet dreams usually happen during dreams that have sexual images.
Vaginal wetness varies from woman to woman and from one sexual encounter to the next. There are several possible reasons your lube level has increased. If you've recently started or stopped using the birth control pill, or switched to a new one, hormonal fluctuations could be the cause. Your degree of wetness can also be dictated by the different stages of your menstrual cycle. Many women produce more fluid during ovulation. But, most likely, you're becoming so lubed because you're superaroused, and that's nothing to be embarrassed about. In fact, your guy is probably patting himself on the back for knowing how to push all of your buttons in bed.
We tend to take vaginal lubrication for granted. It's usually there when you need it and sometimes shows up even when you don't. But it's often only when you have trouble getting wet that you even think about it.
A nocturnal emission or sleeping orgasm , informally known as a wet dream or sex dream , is a spontaneous orgasm during sleep that includes ejaculation for a male, vaginal wetness , an orgasm , or both for a female. Nocturnal emissions are most common during adolescence and early young adult years, but they may happen any time after puberty. It is possible for men to wake up during a wet dream or simply to sleep through it, but for women, some researchers have added the requirement that she should also awaken during the orgasm and perceive that the orgasm happened before it counts as a wet dream. Vaginal lubrication alone does not mean that the woman has had an orgasm.