Incestuous Attraction

Listen up, buttercup. This here joke is all about incest, which is when family members get a little too friendly, if you catch my drift. The dude's talking about his brother's, uh, assets, and how excited he gets when the bro comes around. It's supposed to be funny 'cause, well, most folks don't go there with their siblings. You probably think about eating crayons, so I get why you didn't understand.