One partner fucks the other in the ass with a Bratwurst, causing the receiver to defacate on the Bratwurst. This in turn causes the fuck-er to vomit on the back of the recipient. Next, the two participants sandwich the vomit between their two bodies (like a bun sandwiches a bratwurst), forming an airtight, package-like seal
In the morning, Chris and Brian found themselves glued together after having fallen asleep upon delivery of their Chicago Care Package. Needless to say, the brat was ruined.