Tameka Foster has a “good” co-parenting relationship with Usher. The 53-year-old fashion designer – who has sons Usher V, 16, and Naviyd, 15, with the music star – has maintained a good relationship with Usher since their divorce in 2009. She told PEOPLE: “It’s great. Yeah, everything is great. We’re friends and the kids are at an age now where they can kind of say where they want to be as far as, ‘Hey I want to be at dad’s. I want to go to mom’s.'” Tameka admitted that their co-parenting relationship is “going pretty smoothly”. She said: “We have a very open door policy with the boys. We let …