甘くて熱くて息もできない 番外編「甘くて熱いお泊まり会」

Ayato finds himself staying over at Rio’s place for the second time. When Rio invites him to take a bath together, Ayato’s heart races with excitement, but of course, things don’t end there...!? (Source: Frontier Works, translated) Note: Originally self-published, was then licensed by Frontier Works for digital release.