Trying BDSM without talking it properly is not recommended, you both need to talk and be clear first of your limits. I would be just as scared as him if my partner asked me to just hit them, its a huge responsability to be a dom.
I'm guessing he is scared of talking with Min cause the relationship is still fresh and new and honestly, when you are whipped, I feel you man ┗( T﹏T )┛ its hard to know how and when to talk... And Min is so cute (● ̄(エ) ̄●) you don't want to risk fucking it up so you just end up "reading/overanalysing every single movement your partner does and hoping to get the right hints"...
I FEEL YOUUU (╯°Д °)╯╧╧
(づ ̄ ³ ̄)づ