This short film is based on a young man called Greg, who hasn't told his parents he's gay and worried that they will find a photo of him and his boyfriend as they help him move. After some magic, Greg switches bodies with his dog during his parents visit. 

Out, is a short film (debuted on Disney + streaming services),  under 10 minutes written and directed by Steve Clay Hunter, who worked on Pixar classics such as Toy Story and Finding Dory. 

Reference: 
Pixar Short 'Out' Features The Studio's First Gay Lead Character, CNN, 25 May 2020