Here's my humble submission for the very first contest.
The following is a snapshot of Malcolm Landgraab IV in his TV room, having a typically heated discussion with his younger half-brother Dudley. Hardworking and ambitious, Malcolm tends to not get along with lazy, sloppy, pleasure-seeking Dudley. Nor does he get along with his half-sister Mimi, for much the same reasons.
Dudley takes every opportunity to lambaste his older half-brother for being an opportunistic money-grabbing rat sellout. Dudley would rather turn on, tune in, and drop out, and makes no bones about this.
Mimi is slightly more energetic, thanks to her espresso-swilling habit, but not any more productive or ambitious than her brother. She's happy to take a poke at Malcolm every chance she gets.
No wonder Malcolm would rather go to work than deal with the siblings Malcolm Landgraab III foisted on him. Apparently his father is now too busy courting a rather mysterious tall older woman who wears a lot of purple and keeps her hair tied up in a high bun.
(Technically, Dudley and Mimi are CAS sims, but I made them in the mold of the Get a Life/Bustin' Out characters, so I would say they are Maxis characters too.)