[Yosutebito na Mangakaki (Tomoki Tomonori)] Byoujaku na Junpaku Hime-sama wa Mushikan Love {Mant}

A sheltered, sickly princess blessed with a huge soft bust and thick thighs finds her one and only friend in a docile velvet worm that climbed through her window, and their innocent playdates quickly turn into her stripping off her gown and inviting her 'insect' to take her any way he pleases. What begins as one doting pet soon becomes a wriggling group mating, multiple worms pinning the curvy princess down and stuffing her from both ends while she breathlessly reasons that, like frogs, perhaps one female is meant to be seeded by many males. Sweet, sloppy monster romance where the tiara never comes off, no matter how hard the thrusting gets.