User blog comment:B214/Question and Answers 6/@comment-32724211-20170921081847/@comment-3285616-20170921095215

Well, there is a scene both in the LN and anime (OVA) where she gives a CEO of a company a foot massage, which shows her being pervy. But that was before she developed any romantic feelings for Issei. After she fell in love with him. She is only perverted for him, yes.

And that's what I love about the characters in this series in general. They may all have different personalities, but after falling for the same person they all begin to get influenced by him and develop pervy feelings for him and him alone. Ironically I think this shows great character development between Issei and each of the individual girls.