Two freinds are hanging out watching TV, when one says to the other, "Can I have a glass of milk."
The one who was asked the question left and came back with a glass of milk which he promptly handed to his freind.

A few minutes later, after the freind had already finished the glass the other asks, "Do you want to hear a dirty joke?"
The other one replies, "Alright"
"I did your mom, want to hear a dirtier joke?"
"Ok..."
"Your mom is my neighbor's dog's name, want to hear a dirtier joke?"
"Uhh..."
"I didn't wear a condom, want to hear a dirtier joke?"
"Not rea-"
"It was a she, want to hear the dirtiest joke of all?"
"Why not..."
"When I finished I rubbed off my load and kept it for a few hours, want to hear something funny?"
"Is it dirty?"
"Not really, but it does concern that milk you just drank."

Lolz

Thought of it while playing Rock Band 2