My Dream Wife

Baby, how should I practice this technique? A certain man looked serious. "Good disciple, you have to call me Master at this time." A certain woman said seriously. "Ahem, baby, it's just a title, no need to be so serious." "Ha, I remember, when we first met, you called me little sister!" A certain woman smiled half-heartedly. "Slip of the tongue, purely a slip of the tongue." Someone was embarrassed and didn't know what to do.