I had not thought about this... I said scared by his expression... but maybe he is a masochist... definitely ahead there will be flashbacks of them Louise Yaoi
Look at the last bit of ch 19 and first part of ch 20. Guy is almost certainly a masochist(≧∀≦)
mmmh... i feel a bit sorry for the guy with gray hair... he was trembling when he told him he had to punish him ... his past must not have been nice