[Ronly Bonly Jones]

"Stranger in a strange land" had three married couples.
combining both goals. Marriage to mars!
>>>

Yeah. And they killed each other and crashed, leaving one survivor, Valentine Michael Smith.

It took an all male ship to make the trip the next time, and snag him and bring him home so that he could then sleep with every female character in the book. Just like every other late (post-1962-stroke) Heinlein lead character. Gah.

[longtermmemmory]

but he really loved them.

Remember the doctor/lawyer had three women "on staff".