User blog comment:B214/Volume 23 discussion blog/@comment-31137559-20170322010804/@comment-30924344-20170322091747

In V18, Issei used Penetrate to look at only Gabriel's breasts. V23 is the first time he's seen her body in the flesh and also the first time he saw her naked. If Azazel was replaced Issei during that moment in V23 where Gabriel is changing to erotic bikini's, his reaction would be like Sanji'a from One Piece x10000 lol.