if you follow the paintbrush with your eyes while not moving your head, it forces you to use emdr which is a therapeutic technique to calm anxiety/panic. watching fish swim causes the same effect.
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from: https://jennyvuu.tumblr.com/post/65932190875
recommended: jennyvuu tumblr, redlingerie #seagraveman1 reversecowgirl sean-william-photography reversedeepthroat