Sumire is a married woman who lives next door. She is separated from her husband and has too much time on her hands, so she comes to my house everyday to take care of me.

And it is not only time that she has too much of...

I, who was serving as the partner for her unlimited sexual desire, was repeatedly having steamy sex with Sumire every night. Because an unprotected creampie, Sumire became pregnant...

We still seek pleasure in each other's bodies, even during her pregnancy.

[From DLsite]