Gay actor and author Stephen Fry has been amusing the social networking website Twitter with jokes about his genitals.

Fry who is one of the most “followed” people on Twitter posted a Tweet saying: “This picture proves that I’ve got a big cock.” But the picture posted onto the photo sharing website Twitpic did not appear.

He then posted a further message “Mm – maybe my cock was simply too big. Twitpic pretends it’s not there, although it is if you keep trying.”

When it appeared later here it emerged the photograph of a joke certificate from the Farplace Animal Rescue centre saying that Stephen Fry “is now the proud owner of a Big Cock.”