Jack says to Mom in the kitchen, "I saw this ad in Popular Mechanics and I was wondering what Viagra is for?"

Mom goes to Mike in the computer room, "So, Mike, what specifically would you like me to tell him other than the truth?"

Mom goes back to Jack in the kitchen, "It's for older men who have trouble keeping an erection during sex, and this gives them a little boost."

"Oh my God, why would old men want to have sex, I thought that was just…