Chris Brown Royalty's Celebrating Father's Day with Me!!!

Chris Brown is throwing a party for himself, but

the guest of honor will really be his 1-year-old

girl, thanks to his baby mama. Chris was

supposed to do the ol' hand off Friday ... Royalty's

been with him all week. He told Nia Guzman he

desperately wanted to throw a party for Father's

Day, and Nia agreed to extend the visit a few extra

days to accommodate him. So here's what's in

store for Royalty ... tacos, enchiladas, and other

fixins all catered by rapper T-Rell's mom, a

bounce house, swimming and entertainment. Chris

has invited his pals who have kids. We're told

Tyga may stop by with King Cairo. As for why Nia

-- who's in a bitter custody and child support

fight with Chris -- decided to bend ... we're told

she doesn't want to come off like a bitter mom.

Baby steps.