Take a scroll through Jennifer Lopez's or Alex Rodriguez's Instagram accounts and you'll find dozens of photos and videos that put the art of coparenting on display. Jennifer, who shares her twins Emme and Max with her ex-husband Marc Anthony, has become quite the seasoned pro when it comes to balancing the demands of coparenting. And now that the 49-year-old actress and singer is engaged to ARod, she's taking the term "blended family" to a new level. Alex shares two daughters — Natasha and Ella — with his ex-wife Cynthia Scurtis. Despite not being officially hitched yet, Jennifer and Alex have shared dozens of tender moments with both sets of kids and their former partners. Keep reading to see coparenting done right!