It was not a measure to tighten up the marital relationship, but a means of controlling alcoholemia to women: man could detect in his breath whether he had drunk wine or not.

Before for the Romans (men) alcohol consumption and adultery were fully related (only when drinkers were women). Therefore, women were prohibited from drinking alcohol. This was controlled by the mandatory kisses and, as her husband's alcoholmeter was not always enough, the law required Ius Osculi that his family members also had to kiss his wife to confirm the positive or negative result of the departure.

When the result was positive, the punishment was left in the hands of the husband: beating, frustration… or death. Valerio Maxima claims that a Roman named Egnación Mezenio beat his wife to death for drinking wine. And his punishment in justifying it with this phrase: “Every woman who is thirsty for wine closes the doors to virtue and opens the vices.” The Old Pliny explained that many times the women who had drunk alcohol were locked in a room where they were starved to death.

Over time, the rigid law went on to calm down and allowed Roman women to enjoy the pleasure of Baco. But not condemning to death for drinking did not mean it was well seen. Over two thousand years have passed and many still believe that women who drink alcohol have the right to kiss or do everything they want.