Well since mister H got his ear pierced, I’ve had some new found inspiration for some headcanons, here you go (these are all written very quickly, I apologise in advance lol)
1. We know Sander is very caring with Robbe, putting his hand behind his head on the wall seconds before pushing him up to it so he wouldn’t hit his head and all that, uwu. The second he sees Robbe’s pierced ear he races over to Robbe’s. As soon as Robbe opens the door Sander has his hands on Robbe’s face, carefully turning his head, with a concerned look om his face. ‘What did you do,’ he almost whines. ‘What?’ Robbe chuckles. ‘Your ear, silly, didn’t it hurt?’ Sander says, softly. ‘Honey, I’m fine,’ Robbe laughs. ‘Are you sure?’ ‘Yes I’m sure.’ ‘Okay, okay, good,’ Sander says as he let’s out a sigh. ‘But I appreciate you worrying for me,’ Robbe says with a smile on his face.
2. Now that Sander is ensured Robbe hasn’t been in any pain because of the earring, and he hates to admit it to anyone but Robbe, he’s super turned on by it. Any chance he gets to put Robbe’s left ear with the earring in his mouth, he takes it. It leaves Robbe breathless and an incoherent mess beneath him.