Sister comforts

Tonight the girls were playing in the piano room while Louise, their babysitter, was making dinner for them. At some point Evi started wailing so Louise came in to see what was going on, thinking that maybe it had been a premeditated assault from the elder sibling (even though that NEVER happens around here! Ha!) However, when she came in the room, Sierra had her arm around Evi and was rubbing her back and Evi had her head nuzzled up under Sierra's chin (apparently she had stood up under the piano and bonked her head). Sierra told Louise that she was comforting Evi and that everything was going to be ok. Does it get any sweeter than that? Really?