I think cale goes to lock's first parent-teacher interview. With every glowing praise not only of his grades, but his character and his ability to make himself grow instead of shrink away from responsibilities. Cale Henituse is a man who takes great pride in how his children do, no matter what it is - unless its annoying. So hes praising lock to any willing ear, muxh to locks embarrassment.
"Omg stop please cale nim."
"Why? We're so proud of u. A 99 in home economics? Beacrox would cry tears of gold."
"DAD STOP EMBARRASSING ME." the world pauses. Lock doesn't realise it. Cale very much does.
"....i am?" > referring to the dad comment
"Yes... dont act like you didnt know." >Talking abt the embarrassment.
Cale faces lock.
"I didnt know. Im sorry for being oblivious to your feelings. I'll do better to be worthy of such a title." Cale pats his shoulders, and although lock knows something is wrong with the conversation he isn't able to get the words out. Because there is an expression on his face lock had never seen before, let alone directed at him. His tone was serious but his eyes stone with pride, a sense of responsibility, and gratitude. Lock wants to tell him not to, why would he want him to live up to embarssibg him?? But cale goes up on his tiptoes, and lock bows down instinctively and cale presses a momentary kiss on his fringe. Locks eyes shoot open and hes genuinely frozen in shock. His tail wags and his face turns red like he did when he was new to the manor.
"I will try my best to be a good dad to you." Cale's sincere. Locks mouth flounders like a dead fish. "Goodnight lock. Sleep well."
The whole manor watches cale go to his room, only turning at his door to wave once more. They watch the grin break out onto his face. Lock doesn't get it still, and his mind is spinning from shock, embarrassment, and a little tiny bit of IMMENSE JOY !!
Han manages to explain later, through his fits and outbursts of laughter. Lock is a tomato. Cale is oblivious.