"he who steals in order to commit adultery is, speaking formally, more an adulterer than a thief."
"ille qui furatur ut committat adulterium, est, per se loquendo, magis adulter quam fur."
Thomas Aquinas, Summa theologiae I-II.18.6.Resp., referencing Aristotle, Nichomachean ethics V.ii.4 (1130a): "suppose two men to commit adultery, one for profit, and gaining by the act, the other from desire, and having to pay" (trans. Rackham, LCL (1934)). Objectum: the commission of theft; finis: the commission of adultery.