Cardi B may be in for more step-mothering than she realized

Days before Offset proposed to the "Bodak Yellow" rapper on stage,  he acknowledged paternity of a seven-year-old boy named Jordan.

Justine Watson, the boy's mother, had filed documents against Offset in August to establish paternity. She also wants 15K in retroactive child support payments and her attorneys' fees.

According to documents obtained by The Blast, a few weeks ago Offset admitted that Jordan was his but argued that he shouldn't need to pay Watson any more money because he's already been providing for the boy.

Offset also wants Jordan to take his last name and to have joint-custody.

The Migo is known to have two other children by two other women.

[Related: Offset's baby mama hits Cardi B with the shade.]