am I no longer a freak or am I just tired

what is up with new manhwa and starting the story with sex before it flashback to the the actual start of the story. like I know starting with conflict/hype/hot part of the story and then flashback is nothing new, but i feel (keyword: FEEL) there's a lot of manhwa that start with sex now. due to my short term memory I can't provide an example so just trust me bro