Hack Celebrates Birthday with Even Less Talented Sibling

The pregnant Ashlee Simpson helped sister Jessica Simpson celebrate her 28th birthday with a night out in Calabasas, California, this week.

Chances are Ashlee's hubby Pete Wentz and Jessica's choke artist beau Tony Romo were also on hand to party hard, but we really don't care.

Here's a cute photo of Joe Simpson's cash cows ...

Despite possessing less singing talent combined than Taylor Swift's pinky finger, the Simpson girls remain relevant. Why? Breasts go a long way.