[Kurogane] Helping with Stepmother's Impregnation Life (Cyberia Maniacs Kyousei Haramase Project Vol.3) [YxTL]

A young stepmother's quiet domestic routine unravels into a breathless secret affair with her stepson, carried out in stifled whispers while her husband showers just down the hall. Saki tries to hold the line—offering her mouth instead, begging him not to put it in—but Take-chan is determined to help with her impregnation life, and every trembling close call ends with his seed dripping down her thighs. By the end she's carrying his child, her husband too worried about the pregnancy to touch her, leaving the lovers free to pick things up the moment the bath starts running.