Teddy could understand insecurity. Really, he could, no matter how frustrating it was. He had more than enough of his own, and he knew how shitty it was to be pushed on them until you broke. There was no way he would do that to Billy.
Just...sometimes it was really, really frustrating. Sometimes his hands wandered more than he probably should have let them. Sometimes, times like now, that edge of desperation for reassurance without words crept in, and he had Billy in his arms and backed the smaller boy up against the wall (ever so gently) and slid his hands under Billy's shirt (still carefully going up, not daring to venture downwards) and took control of the kiss, forcing Billy's messy enthusiasm into something more intense.