We're both constantly penetrating your mom
MERRY CHRISTMAS!
After Flossing. Now go brush your teeth and they will be clean AF. Why do you ask 10: Mom said you were lazy AF.
We are both constantly penetrating your mum.
Because they make up an awful lot of stuff. EDIT: Because I forgot about neutrinos.
They have the ability to penetrate both holes at the same time. explanation(http://en.m.wikipedia.org/wiki/Double-slitexperiment)