Ooh, a sequel? I'm certainly happy to see it!
After the way the last one ended, it'd make sense that she'd get jealous...So it's his responsibility to alleviate any concerns she might have!
Nice to see that their loving relationship is going as smoothly as ever, she milks him every morning and night and he's a lucky, lucky man.
Here's the official suggestion thread! https://www.fakku.net/forums/books/official-fakku-books-suggestion-topic
The book is called ãã˜ã‚‡ã†ã„ãˆã£ã¡(Cowgirl Position Sex)
"Little brothers belong to their big sisters." - Orimura Chifuyu, IS Infinite Stratos.
Looks like Aya-nee is a serious student of that very philosophy. Any more serious, and she just might go "yandere" on anyone she thinks is IN-terested in Mi-kun.
"Scary!" ... but she's still a "Sexy Onee-san", so ..... "I'll ALLOW IT!"