Not that we need this, but here is a interactive guide to position selection based on how much effort you want her to put into it and how much you’re willing to add to the event.
I don’t see it as NSFW, but let’s be safe anyway.
According to the accompanying text, that actually shows girl-on-girl bonobo action.
That will vary with the people involved. Sometimes it’s the missionary, sometimes doggy style, sometimes cowgirl.
Isn’t it obvious? Woman on trapeze, hanging by her knees, man on trampoline wearing wetsuit.
So does mine. According to her, the angle is best when I’m at work. I tell you, I don’t get no respect…
As in when you’re not at home??? 
From the linked article:
Unique to bonobos? Um, I have some videos involving humans that appear to show otherwise… :dubious:
Unless I’m misunderstanding what’s happening. The camera angles aren’t always the best. More research is clearly needed, BRB.
As in when I’m not present. :Rainier Wolfcastle: That is the joke.
That would make “woman on top” most natural for me…