The mention in the family bio of "science mak[ing] it possible" for Audrey and Dylan to have a baby together may be a reference to popular mods for The Sims 2 and The Sims 3 that allow same-sex couples to have children who are the biological offspring of both or the hospital in The Sims 3: Into the Future that allows to mix DNA of same-sex couples to create a biological offspring. Indeed, Charlie seems like he may have genetics from both parents, with a skin-tone midway between Audrey's and Dylan's, as would be usual for a biological child in The Sims 3. However, this is still not actually possible in-game, and for the couple to have more children it is necessary to use mods or to have them adopt. Since Audrey is Family-Oriented it is likely that she will want to have more children; this i