An exception is the granular poison frog (Oophaga granulifera) where the male and female place their cloacae in close proximity while facing in opposite directions and then release eggs and sperm simultaneously.
ɐn ɛksˈɛpʃən ɪz ðə ɡɹˈænjʊlɚ pˈɔɪzən fɹˈɑːɡ uːfˈɑːɡə ɡɹˈænuːlˌɪfɚɹə wˌɛɹ ðə mˈeɪl ænd fˈiːmeɪl plˈeɪs ðɛɹ klˈoʊkiː ɪn klˈoʊs pɹɑːksˈɪmᵻɾi wˌaɪl fˈeɪsɪŋ ɪn ˈɑːpəzˌɪt dᵻɹˈɛkʃənz ænd ðˈɛn ɹᵻlˈiːs ˈɛɡz ænd spˈɜːm sˌaɪməltˈeɪniəsli.