https://www.dlsite.com/books/work/=/product_id/BJ01478372.html
https://book.dmm.co.jp/product/4523064/b351ammrc09666/

Base +22

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"There's no way it'll fit in here" A foreigner's obsessive sex 1

"What will happen to my vagina if I put something this big in it...?"
--Koharu, who makes a living as a part-time worker, is being stalked. Her co-worker Noah witnesses her suffering. Worried about Koharu, he suggests that she take refuge in his high-rise apartment.
Not wanting to owe her co-worker a favor, Koharu makes a contract with him to "do something naughty once a day" in exchange for rent. However, Noah's penis is bigger than Koharu thought!
Using her small body, Koharu somehow manages to serve Noah, but Noah says, "Next is Koharu's turn," and Noah uses his long fingers and tongue to stir up her vagina until it's soaking wet, making her cum violently.
And while she's in a daze, Noah holds her strong in his thick arms, and his huge thing pushes her small vagina open--!?

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