I just got major dental work done so get ready for some headcanons no one asked for!
Tiny Lucien getting his first cavity filled and being very scared, clinging to Damien’s hand as tightly as possible.
Couple years later Damien gets a root canal and Lucien insists on being there the whole time and holding his dad’s hand so Damien isn’t scared. Damien holding his sons hand as gently as possible despite his discomfort so he doesn’t worry his son.
Awkward 12-14 year old Lucien with braces.
20 something Lucien staying with Damien when he gets his wisdom teeth out, allowing his dad to cook for him and look after him and fuss over him without complaining since he’s more mature than in his rebellious phase.