Kind of need help here... The context is this: I have my main character and her older sibling (MC is 14 and sibling is 16. They're both female) riding in an open carriage en route to their family home. The MC has cervical dystonia, a painful muscle spasm of the neck and at that moment, her neck is killing her (figuratively speaking.) The back ends of the seat isn't high enough for her to just slouch down and prop her head up on it. Her older sibling suggests she puts her head on the older sibling's lap. She does so and the older sibling begins to gently massage the MC's neck and shoulders. Trouble is, I can't help but think, "Wait a moment, this sounds like something lovers would do, not siblings." The idea is that I want to show that the elder sibling cares about her little sister, but I don't know how to go about it without making it look kind of creepy. Basically...how do you show siblings caring for each other/showing affection without it looking like they're lovers? I really don't know how to write siblings, apparently.