An engineer was walking down the street, and he heard a voice from the sidewalk. He looked down and saw a frog. The frog said, "Hi, I'm really a beautiful princess. Pick me up, give me a kiss, and I'll let you gaze at my beauty for an hour."
The engineer bent down, picked up the frog, put her in his pocket, and continued walking.
The frog said, "HEY! Wait a minute, let me out!" The engineer pulled the frog out of his pocket. Then the frog said, "If you kiss me, I'll turn into a beautiful princess and you can sleep with me tonight!"
The engineer put the frog back into his pocket.
"WHAT? HEY, get me out of here!" He again pulled the frog from his pocket. "Kiss me! I'll turn into a beautiful princess and I'll give you great sex for a whole YEAR!" Back into the pocket went the frog, and the engineer kept walking.
"WAIT A MINUTE! GET ME OUT OF HERE! Please, take me out of your pocket!" So the engineer did, and the frog asked him, "What's the deal here? I promise you a beautiful princess and great sex for a year, yet you keep putting me back into your pocket!?!"
To which the engineer replied, "Hey, I'm an engineer. No time for sex. But a talking frog is WAY COOL!"