This alien-sim hybrid's name is Tycho Curious in The Sims 2 (PSP) and he is unnamed in The Sims 2, as his father Pascal is pregnant with him at the start of the game.
Unlike Brandi Broke, whose child is always a boy, Pascal's baby may be either male or female. Reportedly, there is a higher chance that it will be girl. There is no chance that twins will be born. The unborn baby will always have green skin and black hair. Most of the time it will have black eyes, but sometimes they might be dark blue like Pascal's.