I think we need to appreciate the potential eroticism of the Mobility Aid.
Everybody loves to talk about a sub grinding into a boot, but please Imagine a pretty thing at your feet, grinding into your cane, making them arch into it at an awkward angle but them happily doing so all the while.
My cane is metal and it absorbs cold so easy, but can you not imagine grinding into it? The Cold hard metal against the clit, against a throbbing Tdick, against a hard cock and seeing the way they shiver and whine at it? As I grin down at them and coo pretty words to encourage them to keep going?? Get more horny about mobility aids right now!!!!!!!