Hentai Koushaku no Risou no Okusama

Overview

"I didn't realize she would be so big!" Angelina, a minor countess from the countryside, received a sudden marriage proposal from the high-class Marquis Damian. She wondered if it was a suitable match, with their difference in status, but the marquis's household welcomed her with open arms and preparations for the wedding all proceeded smoothly. Finally, their wedding day arrived, and she waited to meet Damian for the first time, curious to find out why he courted her so ardently. The next day, she discovered the reason why Damian wanted her as his wife - it's because of his special fetish!? (Source: East Press, translated)

Source: AniList