Could someone please explain to me what a wet spot is, how it comes about..etc? Thanks

Ahhh... ask your mother. She knows.

In all seriousness, a wet spot is what comes about during sex. There's lots of juiced around and usually they rest where you fuck. Sometimes people cum on the bed, women have water/lubricant coming out, etc. Yeah...

A wet spot is merely a tool for determining who is the more dominant one in a relationship. Simply put, the less dominant person gets to sleep in the wet spot.

Is this a serious question, or is there more to it than you originally asked, or do you seriously have no idea?

As the poster above said, ask yo momma!