Motto Zutto Issho ni Itakatta / ROCK Erotic (もっとずっと一緒に居たかった/ROCKエロティック; I Wanted To Be Together More / ROCK Erotic), official English title being I wish I could have stayed with you longer / Erotic ROCK, is Berryz Koubou's 33rd single. It was released on October 2, 2013 in 5 editions: a regular and 4 limited editions. The single ranked 4th in the weekly Oricon charts and charted for 7 weeks. "Motto Zutto Issho ni Itakatta" was the ending theme song for JORQ radio show Sports Square SET UP!!.