It's a small laugh, but it's a laugh nonetheless, enough to make Yoongi smile, relieved. This is the kind of thing they really do need to talk about, he knows that, and he wants to, however awkward he might be at it. But he also doesn't want Jungkook to feel bad, especially right on the heels of having felt so good. If he can make him laugh even a little bit, that makes it a lot easier to continue.

"I promise," he says, quietly solemn. "I'm not..." He sighs, fumbling for the right words, to put his thoughts in order. "If I feel like I might be hurting you — not in a fun way — I can't do that. I'm not gonna do that. I promise I'll stop if I'm not enjoying it." And, as far as he can remember, he's never been faced with that dilemma. Even when they've done things that weren't necessarily his kinks, he can't say he hasn't enjoyed them. Hell, he didn't think he was into any kind of bondage before they started sleeping together, but it turns out that sex with Jungkook is helping him to discover all kinds of new things about himself. And there's a lot Yoongi doesn't like about himself, but he refuses to feel guilty or wrong for doing things that make them both feel good.

"I wasn't uncomfortable," he adds after a moment. "Or... a little. But mostly because I don't know what I'm doing and it made me kinda nervous. But you looked like you liked it and it was hot and I just got caught up in it." His cheeks are hot as he says it, a faint embarrassment making his chest tight as he talks it out, as much for his own sake as for Jungkook's. "I guess that's what makes me uncomfortable. Not you or what you want." One of them should be in control. It's supposed to be him. If he lets go completely, too, what's to keep him from fucking up in a way that gets one of them hurt?