This is a multipart story I recently came across on Disguised Writing. It follows the main character Moira and how she does her coworker Nick a favour and watches his house while he’s away for a few days. It just turns out, that Nick has a special robot at home. What neither Moira nor Nick have realized yet, is that this robot can also function as a suit. Things get heated, when Moira decides to experiment with it.

Part One (Archive Link)
Part Two (Archive Link)
Part Three (Archive Link)