he had never taken a single student to bed he’d waited until Nino graduated to do that -----> how long did he wait for Nino? XD.
“We could...But I would withhold sex for a month...” Jun said and Nino knew that his mouth dropped open in shock. ----> some serious threat that is XD. It sounds like "you'll get no allowance this month" threat coming from the parents XDDD.
Phew, good for Nino! It's nice to have understanding family like that ne :D