SORA-188 - The Raw Gem of a Sex Slave: Gundam Otaku Girl Marina (23)

A hardcore Gundam-obsessed girl gets her guard down with niche otaku talk, leading to immediate, sweat-drenched orgasms from a huge cock. The next morning, she descends into pleasure through public exposure and her hidden masochistic nature. Once her 'ero-switch' is flipped, she's unstoppable, swallowing cocks in secret rooms and outdoors alike.