literally the only way i can fall asleep is by thinking about snuggling luke during a thunderstorm.... save me
Luke doesn't like storms. Rain is fine; snow is fine; hail is fine, but as soon as a bolt of lightning flashes across the skies, his face and body tense and he becomes hauntingly quiet. Every flash makes him flinch. He has to try to suppress the way his body trembles and his breathing quickens. His heart races. His mind shows him awful memories. He relives the worst pain of his life with each flash and thunderclap.
You know where this fear of his comes from, and every time he's stricken with terror during a storm you curse the Emperor for doing this to him. Whatever hell the Emperor is in will never be hot enough. The only thing that quiets your hatred for him is your focus on making sure Luke is okay. He can feel your feelings, and he gets uncomfortable when all you can think about is wishing eternal suffering on the Emperor. So, you try to just be present with Luke during these times.
Currently, you're stationed planetside. The climate here produces large, severe storms at least once a week. Today the radar showed a storm system moving in, set to pass through base during the night. Luke has asked you to stay with him tonight, not even needing to provide an explanation. You know why-- aside from his sister you're the only person he feels comfortable turning to for support when he's at his most vulnerable.
That's how you ended up here-- in his bed, holding him close with his head tucked under your chin, slowly brushing your fingers through his hair and talking in hushed tones to distract him. He doesn't say much, but he does try to converse a bit. Every so often he's interrupted mid-sentence by lightning. He flinches and hugs you a bit tighter while you assure him that it's okay, he's safe, you won't let anything happen to him here.
The storm rages for an hour. Soon the lightning is gone, and the rain has become a steady drizzle rather than a downpour. You feel Luke gradually begin to relax, but he doesn't retreat from you like he has before. He actually snuggles closer to you. He thanks you for staying; you tell him it's no problem and to try to get some sleep. You continue to stroke his hair until you both succumb to sleep, and when you awake the following morning you find that you're still entangled with him.