Rather than just have the SynthSheathe used a transformative for Steele or their friends, take it to a Xenogen scientist who can turn it into a dildo that won't trigger any transformations. From there it can be added to the Key Items and used in Masturbation scenes. I've already started jamming out a bit of dialogue for getting Haswell or McAllister to hook you up, does this sound like something people might want?