twin muscle workout

youtube bro science worth watching for workout reference, despite jealous haterz on other channels.

dude 1: yo, are we making all kindz of muscle gains?
dude 2: nah, we gotta watch more twin muscle workout biatch!
dude 1: yeah, then we'll hit that gym...
dude 2: we do what the fuck we wanna do!

by RikkRokk September 23, 2013