The - Sims 4 Juntos
: While infants were added for free, this pack unlocks exclusive mechanics like Infant Quirks (up to 3 per child) and developmental Milestones (e.g., learning to roll over or crawl).
If you are referring to the 2015 expansion focused on group activities and clubs: The Sims 4 Juntos
: Sims now have natural chemistry based on their likes and dislikes, determining if they "click" or clash with others. : While infants were added for free, this