Rosario to Vampire, Nogizaka Haruka no Himitsu Recommendations
Both are ecchis about a girl and boy that pretty much fall in love from the start, as apposed to the story going along and they slowly get more and more connected. Haruka is similar to Moka is RV by how they act very sweetly, softly and are both very popular in their school for being very pretty. Also, they both react similarly when they think someone is taking away who they love. In RV Capu2, Kokoa looks similar to Mika in NHNH, too.