This is from an 18+ ＂motion anime＂ called Mukuchi na Nekokei Osananajimi ga Ura de wa Hatsujou Dosukebe Mode de Ore ni Natsuite Kurundaga (無口で爆乳な猫系幼馴染が裏では発情ドスケベモードで俺に懐いてくるんだが！) I can't seem to find the character name and it appears to only be available for purchase Fanza in Japanese and doesn't seem to have a translation. From what I'm gathering without watching one, a motion anime's scenes are somewhat like what you'd see in manga panels, but they're animated. Could also be compared to what you would see in an adult visual novel with animated NSFW scenes.