>>10836324Flare has said that you can masturbate to her but to never tell her because that's fucking disgusting.
Okayu has called herself masturbation material multiple times.
Noel has implied you can masturbate to her.
Matsuri outright held a youtube chat poll asking who has masturbated to her.
A viewer asked Risu during her health stream how many times a healthy man should masturbate and she answered "as much as you like".
Kanata bought one of those magic wand massagers for Marine because Marine was too pussy to buy it herself.
As far as I know no Holo has ever talked about masturbating themselves besides Marine.