I wanted to see if it was possible for anyone to come up with a creative enough story that includes the "Lots of Sex" tag while excluding the "NSFW" tag. So I whitelisted the "Lots of Sex" and blacklisted the "NSFW" tags in my profile and this is the only thing that showed up. However, this is clearly not safe for work! I guess it is impossible to write a story with lots of sex in it while still be safe for work.