Chapter 292. Ichou does something with Komi under the sheets, and hearts are seen wafting over it. A balloon says "kiss, kiss, rub rub", implying something more than just kisses is happening.
This is almost certainly what doujinshi.org refers to as "Mutual Love / ラブラブ" -- so, 'love love', not 'rub rub'. Still probably `Schoolgirl Lesbians` worthy, but in a different way.