A cow milker would be more fun. I would love to feel one sucking and squeezing my cock. Also thinking of how tight that must be it would work on smaller cocks or thicker ones with no modification needed.
The three boys were so helpless when they were operated by cock suction pumps and they danced by twisting their Legs infront of the audience due to orgasms their cocks.
Great! Licking the boy's shithole would have to be a 'must' for me before purchasing, but also have the boy lick me there too so I can assess that he's got a good technique.