Final answer:
Without a specific text referenced in the question, we can't identify which young Athenian is first affected by a love potion. A known example is from Shakespeare's 'A Midsummer Night's Dream,' where Lysander is the first Athenian affected by a love potion.
Step-by-step explanation:
The question asks about a specific event related to a love potion in the context of young Athenians. The provided excerpts offer a broad overview of commonly held perceptions and literary representations surrounding love potions in the ancient world, yet none of these directly address the question posed. To provide an accurate response, one would typically refer to a text or source wherein this event occurs, such as a play by a classical author like William Shakespeare. For example, in Shakespeare's 'A Midsummer Night's Dream,' the character of Lysander is the first young Athenian to be affected by the love potion when Puck, following the orders of Oberon, mistakenly applies the potion to Lysander's eyes. Lysander falls in love with Helena upon waking, despite being betrothed to Hermia. This misunderstanding sets off a chain of events that becomes a central comedic element of the play.