It's funny because the whole time he is spending time with Bayonetta as a child.
Luka and CerezaRiding on back (?)Hide and seek?C'mon, Smile, smileShoulder-rideCarrying (?)Pattycake, pattycake...<- Direction of motionBayonetta and Lil' LukaMatching ribbonssharing candySharing a secret