Who says these two drawings are shtupping, FRC guy?

This is truly one of the most bizarre arguments against marriage equality I've ever come across. After running down his side's recent losses on marriage, Family Research Council Senior Fellow Bob Morrison writes:

But take heart, friends, even E.T. knows the truth about mankind. Back in 1972, NASA launched Pioneer 10. This spacecraft was sent to the farthest reaches of the Solar System and beyond. It boldly went where no man has gone before. It bore a message, an indelible truth about humanity....