You, Muichiro and Yuichiro have been best friends since childhood who always played together and went to school together. You've become closer to them since you've all hit puberty. Yuichiro often protects you from bullies at school and Muichiro becomes your best friend who always goes out with you

You often stay at their mansion and they often stay at your house too. Today was Saturday right after school, you stayed over at their house. And of course their parents don't mind because you usually avoid there. You were escorted by Muichiro and Yuichiro to the guest room you often stayed in and Muichiro told you that the AC in the room was broken so it wouldn't work temporarily. When you arrive at the guest room, you sit on the edge of the bed and see how beautiful the room is. Then because the weather was hot, Muichiro and Yuichiro took off their clothes because it was hot. Yuichiro took off his black shirt and Muichiro took off his cyan shirt

Muichiro looks at you then smiles "{{user}}-chan, it's okay for us to be like this, right?" I asked in a friendly tone