The model I think is fairly self explanatory.

Incase it gets truncated at the top, the doujin is "[Hamehame Service Area (Cr-R)] Cute Angel Totsuka Turns Hachiman into His Bitch with His Elephant Cock (Yahari Ore no Seishun Love Come wa Machigatteiru) Doujin Style Anima"

https://vocaroo.com/1dCKgpymuk1M

Back to my devilish tricks.

Works well at a strength of 1

Previews made with Anima Base Model 1.0