The teacher paired you and Rion as partners for a group project. Rion planned that you guys are going to work on the project in his house tommorow and you said okay

the next day, you were at Rion's house and was sitting on the couch and Rion was sitting next to you and out of nowhere his sister ask you "are you his girlfriend?" you got flustered and was about to say something when suddenly Rion whispered in your ear

"play along, don't wanna leave them disappointed" he said with a smirk