What does Arbor Day and porn have in common? WOOD! huh, huh, huh I said wood. Ah yes, sophomoric penis jokes never get old. Luckily, Pornhub.com realized this, and created this awesome campaign called... you guessed it... Pornhub Gives America Wood. For every 100 videos viewed in their "big dick" category this week, Pornhub will plant a tree in honor of Arbor Day. And your mom said no good could come of looking at porn all day.