[Nagare Ippon] Sacrifice (Onnanoko Bazaar) [doujin-moe.us]

When goblins and writhing tendrils ambush a party of adventurers, an armored warrior mother makes the ultimate offering—baring her huge breasts and surrendering every hole to the monsters to spare her son Hyuley from a worse fate. What follows drags her from reluctant blowjob to ahegao-wrecked ruin, tentacles and her own child's cock stuffing her through double and triple penetration while her daughter watches, torn between horror and an inability to look away. The sacrifice buys their survival, but the closing pages follow the battered survivors onward across a scarred wasteland, their journey forever shadowed by what mom had to give.