 He explains that the Twilight identity was the only way to limit the extent of the anti-Slayer factions' damage, and that the masked identity gave Buffy somewhere to focus her energies.Overcome by a strange glow, Angel begins to explain to Buffy that they are part of a cosmic destiny.Buffy succumbs to her passion and she and Angel begin to have sex, at first mid-air and later through space, eventually arriving in a paradise-like dimension which Angel announced is "Twilight".