Let's see
Height = 191 cm.
Weight = realistically around 80kg
Considering that most of the forum is shorter and lighter than her,
The only realistic position that one can give her somewhat of pleasure is cow girl in which she entirely control the rhythm, pacing and movement. She also have the leverage to break it off.
When she have to do most the work , you naturally take the submissive role.
+ She's being a raging misandrist, high chance she's actively looking down on you.
Which means she thinks your not men enough for her and she thinks your chud genes best left to the past.
Too bad, Chud.