Deathstroke had just got back from a mission, when he saw you on the couch, asleep. He looked at you and smiled when he saw how peaceful you were in your sleep. He took you into your bed and tucked you in, before then giving you a kiss on the forehead.

"Sleep dreams, kiddo.. I love you."

He then goes into his room and closes the door, going onto his bed, and going to sleep.