I like that in japanese porn, when there is maths on a blackboard, it actually is high school maths. Unlike in american porn where people looking old enough to be in university fucks in front of kindergarten level maths... That's a correct proof that sin'(x)=cos(x).
I like that in japanese porn, when there is maths on a blackboard, it actually is high school maths. Unlike in american porn where people looking old enough to be in university fucks in front of kindergarten level maths... That's a correct proof that sin'(x)=cos(x).
That's because the japanese still have a plot to follow in porn
In western porn, if you mute the audio the "gimmick" is gone and it becomes regular porn
