A woman goes into a pet shop to buy her boyfriend a pet. After looking around she realizes that all the usual pets (dogs, cats, etc.) are way out of her price range. A clerk comes up and asks if there's something he could help her with.
"I wanted to buy my boyfriend a pet, but all of yours are so expensive," she says.
"Well," says the clerk, "I have a huge bullfrog in the back for $50.00. Would you like to see it?"
"$50.00? For a Frog?!" says the woman.
"It's a special frog," the clerk replies. "It gives blowjobs."
So, the woman decides to buy the frog. She takes it home to her boyfriend, explains the strange gift frog, and they're both happy.
The woman goes to bed. Around two in the morning, she wakes up to hear pots and pans banging around in the kitchen, so she gets up to go see what's going on. When she gets to the kitchen she sees her boyfriend and the frog sitting at the kitchen table like best buddies, looking through cookbooks.
"What are you two doing looking through cookbooks at this hour?" says the woman.
The guy looks up at her and says, "As soon as I teach this frog to cook, your ass is out of here!!!"