Not sure if this was mentioned...
But oftentimes, when a young couple engages in "heavy petting" or "everything...but (penetration)" activity to maintain "purity" and virginity...
the guy will often cum on the woman's tummy, with some of his sperms landing on her pubic hairs.
It's especially erotic to rub or grind the penis up against her pussy lips...
She soon feels him cum as he shoots his warm cum all over her...