This film is called "Headmaster's Study". The shorter girl is Thai and I learnt from a write up when i was part of a spanking club and owned an extensive film list the name of the other and taller girl is a Chinese name so that perhaps is her nationality. Both possess beautiful bottoms with lovely reactions, with the first taking it the best and taking the cane. Of course this is pure fantasy as no headmaster would be allowed to fondle and grope the girls' bottoms as he does but who cares!