Tycho Curious

The Unborn Alien Baby of Pascal Curious will come after 3 game-days while playing the game. Pascal Curious had been abducted by aliens just before the game starts, and he has been impregnated. There is a slightly higher chance (~ 55%) of getting a girl and than a boy and unless cheats are used, there is no hope for twins. He will always have green skin and a 80% chance of having alien eyes.

In The Sims 2 on PSP, the child was a boy, who was named Tycho.