竹内有紀 & 井口 Costar Works

竹内有紀 and 井口 are an established costar duo, teaming up across 3 works from their initial collaboration '綺麗なお姉さんと濃密キスねっとり絡み合う密着セックス 竹内有紀' (2019) to '祝！デビュー1周年 20本のチ○ポとイッてるってばぁ！中出し追撃ピストン大乱交 竹内有紀' (2020). Their collaborations are predominantly released under the プレミアム label, demonstrating exceptional on-screen chemistry in genres such as デジモ・中出し・お姉さん.