That reminds me of a question. I've heard that cum can't be washed away with just water (like if a guy jerks off into the toilet, the cum will just kinda float there). So if a girl tries to rinse it out of her mouth with water, there would still be a film of it left in her mouth. Is that true? It sounds so unbelievably gross to me, but it could be true.
One of my friends had a theory that it's not true, but some girls feel that way because it's psychological; they feel tainted, so they only think they're not able to rinse it out. What do you think?