It depends on the woman. My GF in college was like that. We were making out and having roving hands one night, and then my roommate came back from lab. Needless to say, activities ceased.. As I was saying goodnight to her in the hallway - THE ENTIRE UPPER PART OF HER JEANS, THROUGH LOWER THAN HER PANTS POCKETS, were noticeably damp!
One of my first sex partners got super wet, but it was years before I realized, she was squirting. I thought she was just extra wet. We didn't know shit back then.