The historian Ephorus of Kyme said that it was traditional for an erastes to abduct a young boy he had chosen as his eromenos, hold him captive for a few days, then send him home with expensive presents, usually including a bull which the family sacrificed and feasted on. This episode marked the boy's initiation into adulthood. This is the story of Alexias's father Myron and Cleon

I know—though I know not how—that he is Charon the ferryman, which means that the river is the Acheron… but my mouth is empty, and no coin rests on my lips.

Alexias and Lysis spend a lazy afternoon in pleasure. Lysis cannot keep up with Alexias' insatiable libido. This is rather sweet, and more about love than sex.

Takes place on the day when Alexias reaches manhood, directly after the scene with his mother at the end of Chapter 16. Alexias seeks out Lysis to share his special night - his first night as a man, and doubts Lysis' love when his proposal to share their bodies is rejected.

The Last of the Wine by Mary Renault. That scene where Lysis and Alexias are on the beach, and have a moment. Told from both Alexias's and Lysis's point of view. You don't need to read the book to read this; it's otherwise just some nice homoerotica.