In the Euripides play Hippolytus (428 BC), we learn why Phaedra was so interested in the lad. He rejected Aphrodite, the emblem of heterosexual love, for Artemis, the "chaste" goddess of the hunt. Angry at the slight -- how dare there be any non-heterosexuals in the world! -- Aphrodite caused Phaedra to fall in love with him, thus leading to his death (this is a scene from a performance at the National Theater of Athens).
The 1962 film version, directed by Jules Dassin, stars gay actor Anthony Perkins as the son of a shipping magnate (Raf Vallone) who has a consensual -- but doomed -- romance with his stepmother (Melina Mercouri).
Several artists have depicted the death of Hippolytus, so they can show straining muscles and minimal clothing. Peter-Paul Rubens (1577-1640) shows us a beefy specimen, part of his cloak transformed into a faux phallus.
Pierre Subleyras (1699-1749) depicts several guys thrown from the chariot. Hippolytus must have been riding with a coterie of boyfriends.
I don't know why his wrists are tied.
Joseph Désiré Court (1797-1865) goes about as far as he can go. I think it's hidden by a stirrup.