Damijon imagine (they're aged up)
Damian and Jon are fighting some low level bad guy who turns into (or turns out he's working with) Lex Luthor
With Luthor comes Kryptonite and the low level threat us suddenly very high
Damian notices a gun pointed towards Jon and shoves him out the way getting shot himself
The bullet goes through his armour and Robin falls to the ground clutching his chest
Superboy realised that his partner is in trouble and tries to help him but starts getting sick, he vomits almost immediately
Superboy is weakened and upset so he runs away to distract said villian and lead them away from Dami
Jon practically shrieks for his dad as he runs - avoiding fire, bullets and falling buildings - he would've felt babyish for calling "daddy" but Damian was bleeding out and Jon couldn't do anything to help
Clark is there within an instant and relieves Jon of duty
Jon can't get close to Damian (it's not normal Kryptonite) without feeling sick but he sucks it up and puts one hand on the wound and one on Dami's cheek
"Tell me what to do! Please!" Damian struggles but he tells Jon he needs the bullet out
Jon can't exactly touch the bullet and neither can Clark so they try to move him
Clark carries Damian and despite Jon's frets (he holds Damians hand and keeps repeating "you're gonna be find D!") they manage to get to the Batcave without too much hassle
Alfred leads them to a cot and starts work - the Supers wait anxiously - Clark hugs his son as Jon exclaims that "it was meant to be me."
Clark knows that Jon loves Damian, it's painfully obvious, that and the fact he has superhearing in a small apartment
But Clark also knows that Damian loves Jon, the Wayne had spent more time at the Kent's than his own manor
Damian would smile so subtly at Jon, he "put up with" Jons hand holding or hugs, Dami didn't mind helping with his chores and he had slowly become part of the family
But despite Clarks feelings he's kept strong for his son
Nightwing and Batman were currently unavailable and the rest of the bats were mission bound however Tim and Duke came as soon as they were told
...
When Damian woke he found Jon's body wrapped around his own, an arm carefully placed on his chest and their legs tangled
Clark was sitting in an armchair, his head dropped in slumber and Damian could hear Alfreds footsteps
Tim and Duke poked their heads round - both looked worried but Damian gave a sarcastic thumbs up and the boys chuckled - Tim gave him a slice of toast from his plate and the boys left
Damian stroked Jon's hair and smiled as Jon woke
"Damian!" He whisper-yelled, "never do that again!"
"I'm sorry." Damian nuzzled Jon.
This wasn't uncommon - them being affectionate - but something urged Jon to say "I can't lose you, Dami."
"It would've killed you. It only wounded-"
"I love you." This was barely a breath
"I know." Damian kissed his forehead, "you too."