New Hole - Burnet's Turn (Pixiv Fanbox)

Burnet has to concur with her colleague - this hole is too wet and slippery to be boipussy! She's proposed an additional experiment to remove all doubt, though. The specimen must be kept in captivity and inseminated at least once every day (additional researchers may be needed). After a few months, the subject should start to show signs of pregnancy, if their conclusions are correct :3c