壁尻専門店なら利用者側からは下半身しか見えないので爆乳ONLYである必要性はないのでは・・・？ 胸は小さければ小さいほど良いと考えてるけどたまには息抜きとして爆乳もいいね！！！ If the store specializes in wall buttocks, users can only see the lower half of the body, so there is no need to have only big tits....... I'm thinking the smaller the breasts, the better, but sometimes I'd like to have a pair of big tits as a breather!