@Urban...
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intended as full agreement of the pose... not to suggest I particularly want to be training there..
Hot sensual pose, the other variation of her facing the wall as equally a sensual pose...and actually in RL not as fatiguing, much easier to adjust the angle of penetration in either lowering the givers or receiver knees... with a little manipulation you can always find that sweet spot... and give her something special.
In descriptive play that alternate version is a Dom's dream pose.It is a aggressive, assertive pose which creates an immediate sense of confinement,... a pose easily manipulative for not just anal but vaginal sex, and if someone is well versed in cyber sex,...the mental images coupled with the right intensity can lead to a truly mind warping orgasm.
All in all, however you do it wall sex rocks.