Looking for doujin that has a dude sitting on the U-shape chair (which has space in the middle)

Iirc it's a 3ffm doujin, with the dude sitting on the chair and 2 girls take turns rimming him. 1st girl with her lower body is in the same direction with the dude back, and after that they swap, 2nd girl rims the dude while giving him bj/ playing with his ball