why ?
He's manipulative. He's aware Dojun is insecure about not being so Alpha like or strong unlike his Omega brother. But he still used it so they could keep going with the sex. What a jerk
oh ok ، I just saw it as teasing the one you like , no harm done .
he might be just teasing dojun , you saw what he did when omega brother dohun disrespected dojun he did hit him and told him to respect his older brother , so he hate when others do it to dojun , I think the doctor really in love with dojun .
It's not teasing when you're quite aware that it's hitting someone insecurities. He's even coaxing the Alpha brother into having sex with him.
I really don't like you doctor anymore...