Every Friday, my little sister knocks on my dorm room door, all dressed up...
gfycat.com category @internet1776
Finally alone with my wild cousin, and mom keeps knocking to see if we're okay.
imgur.com category @lemauvaisfils
Sometimes when I can't sleep, I just knock on bro's wall to come over, and he fixes me right up!
imgur.com category @TheCoinGirl
tumblr.com category @lemauvaisfils
gfycat.com category @eliza_cs
Bought a knock off Holy Trainer v2 and couldn't be happier with it!
imgur.com category @LockedVirgin
you can have sex with her now that there's no worry she'll be knocked up by you
imgur.com category @[deleted]
imgur.com category @wcc1k
My evil older sister is always trying to get me to knock up the younger one.
tumblr.com category @nestwarme
imgur.com category @inlovewithdoggy
When you question whether you should knock and realize you are in a porn video.
imgur.com category @TragicDonut