A guy went to the doctor to improve his sexual performance. The clinic was in the 4th floor & he took the elevator. The doctor gave him 3 viagra-like tablets & asked him to use it one at a time.
while he got in to the elevator, he saw a nice looking girl inside & immediately wanted to test the tablet. He had one & couldn't control himself. he stopped the elevator & fucked the girl & finished her off. the girl left the elevator in the 3rd floor, crying. to his luck, an amazing lady in her mid-30's got into the elevator. Again, he took the 2nd tablet & finished her too. she left the elevator in the 2nd floor, crying.
He really was a lucky bastard - again, an old woman in her 60's entered the elevator. Old but looking tight, the guy wanted to finish her too. he took the 3rd tablet & gave a good time to this old lady too.
now that he didn't have any more tablet, he went back to the doctor & asked him for more. the doctor asked him what happened to the 3 tablets he just gave. this told him about the whole thing - fucking a girl, a lady & a oldie. the doctor was dumbstruck for a while. then he gave one more tablet to him. he turned around, lowered his pants and said to him "finish me too & the world will praise you for fucking up my whole family!"