when a boy is in love with his pillow making him make love to it. he will spill his man sauceall over it then rest his face in it when he is done. true story.
A cum-pillow is a separate pillow that a guy uses to fuck something fluffy to take care of his morning wood and give himself a pillow-gasm so he doesn't get his good goose-down cum-mop cum-wet when he blows his load.
I brought my old cum-pillow from home when I came to the Academy - mine is a "Pillow-Man" cum-soaker!
pillow-case cum stains are the tell-tale ivory-colored remainders of cumgasms that a guy gets all over his wonder-pillow when he fucks it and blows his load.
When I was a teenager, my Mom asked me what the stains were on my pillow-case -- I didn't tell her they were pillow-case cum-stains -- I told her they must be slobber stains of mine made when I was asleep!