Pretty much sums up my life day.  Could barely concentrate in class:  Teacher: “Thick and thin filaments shorten and expand at incredible speeds. The z-disks and I-bands that make up myofibrils tug and pull, much like tug of war. Quite exciting stuff really.” My Brain: “Thick…expand…tug…pull…speed…exciting…umm..” 
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/ #Sexual Frustration #Sex #Personal #Meeeehhhhh