The Kelis-Nas divorce drama is really starting to heat up. Apparently, Kelis wants him to pay up BIG BUCKS for expenses.

Check out what TMZ is reporting:

Kelis is asking the judge to order Nas to pay spousal support, child support, all pregnancy-related expenses, and one-half of all medical expenses after the child is born. She also wants $3,500 for the baby nurse after the child’s birth, and $20,000 for strollers, cribs and other baby supplies.

Kelis says, “My survival is based on [Nas'] will at this time. If he does not want to pay for an expense, it does not get paid.” The couple was married in 2003. The baby is due this month.

Kelis says she’s entitled to maintain the lifestyle to which she became accustomed during their marriage — they have five homes, fly first class, go to fancy restaurants, and on and on. Most interesting — “There were many expensive pieces [of jewelry] such as a princess-cut diamond tennis bracelet that was recently appraised for $190,000. My engagement ring is an approximately nine-carat cushion-cut diamond solitaire. I have numerous watches…such as Cartier, Rolex, Frank Muller and Chopard.”