Wow, those dudes sound selfish. A lot of men just want to get off and don't care if the woman finishes, so it's not like it's rare. I've given my bf oral sex more times than I can count, he's gone down on me once and stopped after five seconds saying he "didn't like it". like ok do you think I like having yours in my mouth??

You're not asking too much, both people should get to finish. Before you sleep with a guy you should let him know all this so it's at least not a surprise. Some will be cool with it, others won't be. Or you can be petty and just call it a night before he finishes (: