Maybe:
[name_f][/name_f][name_m]Lucas[/name_m] [name_m]Arthur[/name_m] / [name_m]Arthur[/name_m] [name_m]Lucas[/name_m]
[name_f][/name_f][name_m]Rhett[/name_m] [name_m]John[/name_m] / [name_m]John[/name_m] [name_m]Rhett[/name_m]
[name_f][/name_f][name_m]Duncan[/name_m] [name_m]Robert[/name_m] / [name_m]Robert[/name_m] [name_m]Duncan[/name_m]
[name_f][/name_f][name_m]Xavier[/name_m] [name_m]Louis[/name_m] / [name_m]Louis[/name_m] [name_m]Xavier[/name_m]
[name_m]Erick[/name_m] [name_m]Cassian[/name_m]
[name_f][/name_f][name_m]Mark[/name_m] [name_m]Cassian[/name_m] / [name_m]Cassian[/name_m] [name_m]Mark[/name_m]
[name_f][/name_f][name_m]William[/name_m] [name_m]Cassian[/name_m]