For the wife character (Rino), the narrative arc is often one of reluctant participation that slowly turns into willing submission. This adds a layer of psychological betrayal for the husband, as he watches his wife not only being taken but ultimately enjoying the experience. This is the "full" part of the keyword: the wife’s transformation from a loyal spouse into a complete sexual being for another man.
Please let me know which tone fits your intention, or provide more context so I can refine it. nakajo rino in front of my boss my wife became full