I wanted to have an updated version of this mod because I get irritated when my two teens are romantic with each other and then one ages up before the other and then they go days or weeks with no romance because the other is still a teen. You can find that mod HERE This mod has not been updated since May 2016 and reports in the comments say it is broke. 1.) Break Up Anytime Lets Sims breakup with each other, no relationship decay needed 2.) Communal Showers Lets children and teens to shower in the same room as others (say for instance a Gym shower) 3.) Extended Family Allows the game to recognize great-grandparents, second cousins, great aunts/uncles etc as.
Contraception or a paid increase in fertility is not a problem. The female and maternal experience will also change. The Sims can also enter polygamous and polyamorous relationships. Though Maxis allows you to assign likes/dislikes and traits to your individual Sims, your Sims do still get predictable after awhile. I found one mod other than INTEEN that allowed for teens to be romantically involved with Young Adult and Adult Sims. The mod adds the ability to peep others, sweat, and secrete all sorts of bodily fluids, etc. Best Sims 4 Personality Mod: Slice of Life. Also some CC may conflict, as with the Sims 3, like skin/outfits etc. Mod conflicts (try without other mods first). And start a new family in CAS if you want to see any changes once you reinstall a mod like this one.
Help with my mods or sims 4 in general–> Discord That you have the latest bugfixed updated version from here.