>>531754202
>it's obvious she's lacking some part of the leg
Pic-related also suggests this, but this wasn't drawn by Wada, so I'm not sure if to take it into account.
>>531754941
In CCC, she was described as being a sea of pleasure in the shape of a girl, which her summer Valentine's reminded us of.

I'm on the side that Lip and her wear prosthetics and lack feet and hands. But I think it makes sense and is cool that they can switch or shapeshift them according to the setting they are in.