Based on how he was raised I imagine Regulus is always covered in 2 layers at least if not 3-4. and Based on their friendship dynamic I think Barty would make ‘he’s naked!’ Jokes when Regulus so much as wear shorter socks that show a bit as he walks.
Regulus: *loosens his tie and undoes his collar after an extra long day at classes*
Barty: okay whore













