He probably witnessed some crazy (likely bad) shit his father did and being called kinky is a bad thing for him. OR his mother left because the father was overly kinky for her. OR both
Ikr I'm curious abt the backstory
Oomp when you said like that everything make sense maybe dad was an S and the mom was an M but got fed up? Hence the divorce. So maybe he also has S tendencies but tried to keep at bay but since our baby is way too cute and adorable he finds it hard to hold it back thus we might have some “kinky” actions omg i hope they both love it and accept it. ε=ε=(ノ≧∇≦)ノ
kinda weird that he decided to thinkinh about genetics after getting freaky and bringing up kinks