No.
The two pronouns in the sentence are "his" (referring to Mark) and "it" (referring to the joke).
"France has neither winter nor summer nor morals. Apart from these drawbacks it is a fine country. France has usually been governed by prostitutes." -Mark Twain
Mark D. Samson has written: 'Localization of the sacral parasympathetic nucleus in the dog' -- subject(s): Anatomy, Dogs, Nerves, Sacral, Sacral Nerves
depends on how old he is (and i know this is a joke)
Big boobies.com
He, it
Funny Video:I think the funniest video is Mark and Will by MarkFacebookWill.Your Welcome By: SwimChamp
Possibly Samson
The cast of Funny Is Funny - 1997 includes: Giselle Fernandez as herself Mark Hernandez as himself Bob Kubota as Himself (1998, 2004)
The sentence contains two pronouns: he and it
The cast of Funny Cuts - 2006 includes: Crust as Devvo Guy Hargreaves as Mark
He is the pronoun for brother; it is the pronoun for joke. The word your is an adjective form of the possessive pronoun 'yours'.