Franco, 27, is the younger brother of Hollywood actor James Franco and has starred in 21 Jump Street and is set to appear in upcoming movie Warm Bodies alongside Nicholas Hoult, while Jordan, 24, is a 6ft 11in NBA star.
The Real Life H-O-R-S-E! comedy short sees the pair take part in a series of silly tasks against one another, including the "penis competition".
Need we say more?
Watch the Funny or Die clip below: