High Tech Milking Machine_英语成人笑话

lewis's cousin, the farmer, ordered a high-tech milking machine. since the equipment arrived when his wife was out of town, he decided to test it on himself first. so, he inserted his penis into the equipment, turned the switch on and everything else was automatic.
soon, he realized that the equipment provided him with as much pleasure as his wife did. when the fun was over, though, he quickly realized that he couldn't remove the instrument from his penis. he read the manual but didn't find any useful information. he tried every button on the instrument, but still without success. finally, the farmer decided to call the supplier's customer service hot line.
"hello, i just bought a milking machine from your company. it works fantastic, but how do i remove it from the cow's udder?" "don't worry," replied the customer service rep, "the machine will release automatically once it's collected two gallons."