If you could have sex in only one position what would it be?

I would choose Cowgirl and then add different moves
Spin, Asian, reverse, lazy

Some positions are better with partners who are a certain height, weight, or skill set ... normally I would say cowgirl, but my current ATF is perfect for 69 ... and for the first time ever, that is the position that I find myself dreaming about and craving in between our dates.

More commonly known as "Doggy Style".  There are many ways to enjoy this position for both partners. The male has an advantage of thrusting in deep while his partner can enjoy cl*t  stimulation to bring her to new heights as well. Doggy can be enjoyed laying down, standing up, bent over, or on hands and knees.
If I had to choose one over the other, it would be this one!

I like to be able to look her in the eyes, kiss her, and thrust deep into her with her legs over my shoulders.

What turns her on , turns me on........so......
But , I will say I usually finish with M

her pussy in my face and her lips wrapped around my dick.

the only position with a view of that beautiful ass while watching every penetrating pussy stroke..

if we can ever figure out the logistics !!

....

comes with different angles that calls for careful explorations in different positions,  by every means possible at our disposal, i.e. tools, tongues, handy guys, things that vibrate in conjunction with all of the aforementioned items to get the correct rhythm going,  blending our baritone and soprano voices as one right up to that rousing finish---AAAHHHHH! OH! OH! OH, Gooddd! and that sweet sound(that can't really be described--ethereal? the ladies make that is like music from Heaven)

Some people fit together better in different "ways" (positions) than others....
Some guys k9 is perfect, others are just too tall to make it work.
Some guys I can ride, some guys I simply can't find my balance on.
Some guys can work the missionary like a MOFO.... some...  can't.
 

Totally Agree!!