We're both constantly penetrating your mom
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We are both constantly penetrating your mum.
Were both constantly penetrating your mom
Step one: penetrate the student body.
When you are a type of radiation. No one wants someone who can't penetrate well.
We're always penetrating your mom
They have the ability to penetrate both holes at the same time. explanation(http://en.m.wikipedia.org/wiki/Double-slitexperiment)