Shouto loved it whenever Izuku babbling, no matter what he was babbling about. And if he was babbling mindlessly while Shouto was pleasuring him, well, then he knew he was accomplishing his goal.

He worked his mouth down more around Izuku, using his tongue to swirl it around the length before started to bob his head while sucking lightly, not wanting him to come too quickly. He searched around for that specific area inside Izuku with his finger, rubbing against it teasingly a few times once he found it, before he pulled back and started carefully working another finger in. Just enough to give Izuku a taste of things to come when something bigger replaced his fingers.