Future’s baby’s mother wants more… child support, after she believes she was swindled by the rapper lying to the judge about his net worth.

According to TMZ.com, the rising hip-hop star and Jessica Smith struck a child support agreement in which the rapper agreed to pay $1,662 a month for their 10-year-old son, based on a monthly income, which he set at $16,516.

However, days after the agreement, Smith says Future (real name: Nayvadius Wilburn) was on TV bragging about carrying $25,000 cash on him at all times. So, she went back to court to file new new docs to seek a new deal, and believes his actual monthly income exceeds $50,000.

Future has not commented. Stay tuned…