れい & 北山シロ Costar Works

れい and 北山シロ are an established costar duo, teaming up across 5 works from their initial collaboration '寝取られおっぱいNTR 自慢の巨乳嫁が俺の友達に揉みまくられて中出しまでされていた 蒼井れいな' (2020) to 'お母さんの玩具になった僕 激淫！美しき猥褻義母の誘惑！ 若菜れいか' (2025). Their collaborations are predominantly released under the ルビー label, demonstrating exceptional on-screen chemistry in genres such as 巨乳・人妻・主婦.