Support the original artist:
https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_459296/

安定期に入った妊婦の真里は元気に主婦生活を送っていた。だが、彼女には重大な秘密が…。お腹の赤ちゃんの父親は…息子の幸介なのだ。
ある朝玄関で息子に熱烈なキスをされた真里は、妊娠にいたるまでの息子とのバレてはいけないエッチな親子性活を思い出していた…。

※前作からの続編ですが、本編だけでもお楽しみいただけます。

Part 1 (Raw): /g/2993391/c072152f97/

[Synopsis]

Mari, a pregnant woman in the stable period, was happily living her life as a housewife.
However, she had a serious secret...
The father of the baby in her belly is... her son, Kosuke.
One morning, Mari was kissed passionately by her son at the entrance and she remembered the naughty parent-child sex life that she had with her son before she became pregnant, which she must not reveal...

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看起來繪師不太擅長畫關節呢

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