It's definitely something out of fantasy and pornos, to feel two sets of lips on him at the same time. He can't say he's never fantasized about the twins but he hadn't thought of them together, like this... His spine tingles as Osamu moves lower down his spine, biting his lip as that sensation entangles with the pleasure from Atsumu's mouth on his nipple, the other one not left abandoned and teased by his fingers. His nipple is hard and the attention makes it ache in the most delicious way.

"Ah...ha..." Kita gasps in surprise when his cheeks are spread and he feels a wet tongue on his hole. The sensation of pleasure is only amplified when both of them are touching his pussy, already wet showing that they're definitely doing a good job arousing him. He grabs at Atsumu's arm when their fingers slid into him, his pussy tightening around them. His face is flushed, aroused and a little embarrassed at being so seemingly easy.