That really made me laugh- it was just so matter-of-fact XD
I think we've all done that- create the man whore Sim and send him shagging all over town. Mine happened just before my legacy; I had a Sim named River Summers and he slept with everyone, got them all pregnant, AND had the fertility treatment so the victims were dropping twins like nobody's business.
Of course, by the time I started my legacy game the town was overrun with his spawn... But I guess it makes a change from all the other legacies where the founder buddies up with Cyclon Sword or Hank Goddard or... that guy I've forgotten the name of (I have no time for pre-mades).
If you ever read the first few chapters of the MFL again you'll see his kiddies in all shapes and forms. Heck, I'll save you some time: