User blog comment:B214/Volume 22 spoilers/@comment-81.34.86.20-20161024091956/@comment-88.0.54.14-20161024115006

The male queens no matter in this... Exist:

-Rias Peerage, with Akeno...

-Sona Sitri Peerage..

-Riser Phenex Peerage...

-Sirzechs with Grayfia

Maybe a 98 like Kuroka to overcome Rose and for continue with Rias an Akeno continue as the best.... I would be surprised that the Queen of Issei, did not have a very huge size.. Future Issei is more perverted than the current in DxD EX..