Did both thieves ridicule Jesus on the cross?

If you have read The Bible, you will see that there was never any indication that the two thieves on the crosses beside Jesus were brothers.

But probably they were relatives, might be cousins. A legend says that Dismas was the eldest son of a rich Jewish merchant while Gestas was a peasant. The familiar tie put them in contact and made them friends. Gestas was older and corrupted Dismas. After several years of robbery they were caught, judged and put to death by crucifixion. They were to be Jesus' companions of torment.