Meghan Trainor has been a doting parent to son Riley since he was born last month and has delighted her over 11.8 million Instagram followers with numerous snaps of him.MORE: Meghan Trainor's baby is here – see his first photosAnd her latest photos of the tot might just be the cutest – and certainly the funniest – ones that the singer has shared yet.In some aerial shots, baby Riley was seen lounging on the tiniest sofa in the world, and things just got cuter in the follow-up pictures.In one, the