Level 1, Precocious Apprentice (summon mirror mephit), get a simulacrum of an efreeti, use your three wishes for a vial of a self-replicating disease (spreadable through food and water, through air, through physical contact, and through various bodily fluids) that does nothing but render its victim both sterile and incredibly sexually aroused all the time, to the point of being compulsory (only interrupted by physical requirements such as eating, sleep, etc). Also destroys inhibitions. Consider it a 'magical item'.
Ramification-free fun for everyone!