Blonde read it slowly

There are these two sisters one is a blonde and one is a brunette, and they inherit $91 from their aunt who died. They have a cow, the brunette is looking in the newspaper, and sees an ad for somebody selling a bull, so she tells the blonde ’i’m going to go check out the bull and if it’s the one we want i’ll tell you to come with the horse trailer.’ so the brunette goes and likes the bull so she buys the bull for $90 she goes to telegram and says ’i want to send a telegram to my sister to tell her to come with the horse trailer. now how much is it?’ he replies ’it’s $1 a word.’ so the brunette sits there for a while then she says ’make it say COMFORTABLE.’ and the guy responds ’will she know what to do from that?’ and the brunette says ’yeah, she’s a blonde she’ll read it slow: COM-FOR-TA-BLE (come for the bull)