Severus was exceedingly glad that Hermione hadn't let him give up, even after earlier. Because this was -- amazing. Simply amazing. And if she'd been in any doubt at all that he was enjoying himself, the long, loud groans that steadily accompanied each new inch of progress would certainly have told her so. He knew it couldn't have been comfortable for her, of course, in spite of the way she moaned and pushed back against him, but hopefully it would get more comfortable for her with time.
Once he was all the way inside -- or as far in as he imagined he could get -- he held still and stroked his hands over her back again. The urge to rut away was still stronger than he would have liked to admit, but he wasn't about to start thrusting until she was ready for him to. "Are you -- all right?" he asked then, haltingly, because he was panting slightly still, though obviously not from exertion. It was pure, unadulterated excitement, because she just felt so bloody good.