FL has a twin sister who set her up to have a one-night stand with some guy and she gives birth to twin boys. the kids are super intelligent and, iirc, they try to set up their mom with a guy who they don't realize is their real father.
It had 200+ chapters, I think. And it may have also been completed.
Thanks in advance!ヾ(❀╹◡╹)ﾉ~
