Rihanna “loves” parenting her children. The 36-year-old star – who has sons RZA, 23 months, and Riot, nine months, with A$AP Rocky – is “all about motherhood” and she’s relishing the challenging of raising her boys. A source told PEOPLE: “She brings the kids on every trip, including work trips. The kids come with her everywhere. She never complains that she’s tired. She seems to just love life.” Rocky, 35, has also been hugely “supportive” of Rihanna since they became parents for the first time. The insider shared: “They’re doing a great job raising their kids. He’s very supportive of Rihanna …