A prenuptial agreement; not the most romantic document, but a necessity for a young Kardashian planning to tying the knot. Since boyfriend Kris Humphries put a ring on it Kim has been in full wedding planning-mode, and she seems to be starting with protecting her rather hefty net worth: $35 million. You can't exactly accuse Kris of being a gold digger though. The basketball star must be pretty comfy raking in $3.2 million a year, making his net worth around $8. So Kim might be the primary bread winner, but both halves of the happy couple have plenty of assets to protect.