Hitmanx3z 3D Artwork set Day 3, Syndori scene. It's part of the still ongoing set "Day X". This follows the time line of the creator for the given day and includes different versions of some angles/shots of the full action between Syndori and the monster.
The set is included in Hitmanx3z's collection https://e-hentai.org/g/336920/ca609e1529/ so if you can afford the bandwidth and/or don't have his 3d sets yet I recommend to head there. If you're only interested in the action or need this set to complete your archive then you should stay though.