UGH. I hate that. I see it a lot in fanfic, too. I just read a fic where Spock was like, "BTW, I can gestate young," and Jim's like, "Weird, but fine," and sticks his dick in him, then like ten minutes later Jim's like, "Wait we didn't use protection????"

I wanted to reach through the screen and strangle him, and then flick the author on the nose.