An earthman and his crew lands on Mars and met the local populace.

The topic of procreation comes up and the earth captain asks the Martian how they procreate.

Easy… The Martian man demonstrates by stepping in a room and presses a blue button and out jumps a small Martian boy and start walking around.

And a female?

Ohh, then you just press the red button, the Martian responds, pressing the red button and a red-headed Martian girl jumps out of a tube.

The Martian then proceed to ask the earthman how humans procreate and the captain offers to show them via a one way window.

So he took his beautiful assistant in and they made love while the Martians watched.

When they were done and as they step outside the room, the Martian looks in amazement and ask.. So where is the little human?

Nahh the captain answer, “That only happens in 9 months time”

Ohhh the Martian responded; “So why where the two of you in such a hurry at the end?”