[Yanagawa Rio] IdolMaster-bation☆ (Bokutachi Otokonoko) [MrBubbles]

Idol boys Rei and Ai share the stage in their group MILK, but backstage Rei keeps sneaking off to enjoy the eager, mature affections of Hanayama-san — until his jealous partner resolves to prove he can please him just as well. A swimsuit photoshoot pushes things over the edge when Rei's tiny bikini fails to hide his arousal, and Ai pounces with a hungry sixty-nine before offering up his own first time, begging Rei to push deeper even as it hurts. The punchline lands at the next shoot, where Ai's sore, bow-legged posing becomes an unexpected fan-favorite quirk and MILK's popularity turns unshakable.