Watching Wei Ying getting into character actually humored him and aroused him, so playing along with the act.

"Wei Ying, c'mon. Take your punishment now..." He prevents him from jumping up and running away and considering he's drunk, he easily wrestles him to the bed. Setting the blindfold aside, he reaches for his headband instead and pulls it, and if he could pin him down on the bed first long enough to bring his wrists around on his back, he makes an attempt to tie his wrists together to restrain him and immobilized him, rendering him helpless.