[Chae] Kareshi to no Sex ga Jouzu ni Dekinai Watashi ni, Yasashii Oji-san ga Gachi Iki Koubi o Oshiete Kureru Doujin Style Illustrious - v1.0
NSFW
The model I think is fairly self explanatory.
Works fine at a range of 1-1.5. Previews made with novaFurryXL_illustriousV20.