Gokudera better invite him over after this. If he doesn't, Yamamoto is going to kind out where he lives and invite himself over.

"Ah, no," Takeshi felt his cheeks warm. "I'm not all the way in. I'm, um, mostly in. Like. One sec." He reached between them and takes a measurement then it holds it in front of Gokudera's face. "This much is out."

It's about three centimeters. Not a lot, but still, he feels kinda giddy that his dick doesn't quite fit inside Gokudera.

When Hayato tips his head back, Yamamoto buries his face his his boyfriend's neck. He wraps his arms around him again and began to move a little faster, a little harder. "So good."