Steph, that sucks. The old missonary will work. Spoon from behind (bad knee in the air or comfy on a plush pilllow. sitting in his lap with your legs straight out to the sides of him ( like a 'V' almost) Could always invest in the 'swing' there will be zero pressure on the knee that way. Almost feel like gravity free!! Hmmmmmmm

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Cowboy logic, always drink upstream from the herd.