Not sure what you have planned for eating, but to make it a bit more interesting than it is now, I think you could make it more than just a mandatory task. For example, my idea was that you could refuse to feed her for a while (maybe at first she'd even bring it to your attention, thinking you forgot while you'd tell her you're well aware you haven't fed her), to the point that at about 3/4 to 1/2 hunger she'd start asking you if you could make her something to eat (to which he'd probably tell her to do it herself, but she'd remind him of her missing arm), refusing to do so would lower the relationship level and start adding stress. And while that'd normally discourage starving her, repeatedly denying her food until she has maybe one or two hunger points left could trigger a special h-scene that would result in a big submission spike and the relief of finally eating and the sexual release could put her accumulated stress back down a fair chunk. You could even incorporate a couple variant scenes depending on relationship and submission.
Just an idea I had the other day. Keep it up, chief. Excited to see where/how far this goes and who or what the next girl is.
