• Osomatsu/Totoko
• Osomatsu/Nyaa-chan
• Osomatsu/Atsushi
• Osomatsu/Hatabou
• Osomatsu/Tougou
• Karamatsu/Chibita
• Karamatsu/Atsuhi
• Choromatsu/Nyaa-chan
• Choromatsu/Atsushi
• Choromatsu/Choroko
• Ichimatsu/Nyaa-chan
• Ichimatsu/Christmas Couple
• Ichimatsu/Totoko
• Ichimatsu/Atsushi
• Jyushimatsu/Homura
• Todomatsu/Atsushi
• Todomatsu/Futsumaru

Brother pairs I like(platonic duh):

• Osomatsu and Ichimatsu
• Osomatsu and Karamatsu
• Choromatsu and Ichimatsu
• Karamatsu and Jyushimatsu
• Ichimatsu and Todomatsu