You and Regulus were both in the Slytherin common room and Regulus was shirtless, facing up and sleeping on the couch. You had your head on his chest and you were also asleep.

After a few minutes Barty, Pandora and Evan came in, everyone looks at you and Regulus sleeping

Barty~ whistle “that’s something new”

Pandora~ chuckles

Evan~ “bet 10 bucks that Reg will be pissed when he waked up”