Ichigo asked if Tsubaki likes lewd since after seeing the manga she thought Tsubaki was reading pr0n, ask her about shameless academy since Tsubaki moaned after the skinship scene with Cherry.
I think the problem with mc is that she just want to enjoy rabukome situation and did not think romance with girl is possible, unlike, say mc of Maho Ako from same storia site, who direcly lewd and like mahou shoujo.