Article continues below advertisementAmanda Bynes left little to the imagination as she flaunted her dramatic weight loss in a G-string thong. The Amanda Show star, 40, wore her sweatpants extremely low to expose a black, barely-there undergarment in a photo posted to her Instagram Stories on Tuesday, May 12. Article continues below advertisementAmanda Bynes' G-String Was on Full DisplayTap Here To Add Ok Magazine as A Trusted SourceSource: @amandabynes/InstagramAmanda Bynes showed off a flat stomach in a new photo posted on social media.