Rihanna has revealed her latest tattoo: a scribble artwork drawn by her three children . The musician’s longtime tattoo artist, Keith McCurdy, shared an Instagram post Friday featuring a close-up of the 38-year-old’s new design on the back of her leg, which consisted of a cluster of scribbles . The original artwork was drawn in colorful markers on a piece of paper and decorated with Paw Patrol stickers. “Family tats @badgalriri,” the tattoo artist captioned the post. “Designed by her babies.” Another slide showed the musician before getting the tattoo, being asked if she was nervous. “Yes,” she replied, laughing. Rihanna’s three children contributed to the design for the musician’s latest tattoo on the back of her leg (Instagram via @bangbangnyc) “The torture I’ve endured in this shop,” Rihanna joked in another video. One photo also showed the singer proudly showing off the new ink while standing in front of a mirror.…