because it tastes bad and it's just gross. would you want to swallow cum? I don't think so.
Because it's uncomfortable, doesn't taste good. Just because you see it in porn doesn't mean we love it in real life. Just keep a towel ready and nut on that
I think some girls just don't like the taste, or don't like having something shot down their throat. I can understand that. It's an acquired taste. It's kind of uncomfortable at first, but you just gotta get used to it.
would YOU want to swallow? think about it...its sick.