[His eyes narrow almost dangerously and he gets a stormy expression on his face. If he hadn't gotten to know Will better before, if he'd only known Will for as long as Will's been getting to know him again, he'd be pushing him away right now angrily. But because he has gotten to know him and is fairly sure that Will meant his words to come off as meaning no harm, Nico doesn't and gives him a clearly affronted look instead.] How about I decide whose allowed to do anything to me or with me.

[That said though, his expression softens, as does his tone, dropping the bite to it that had been there for a moment, even though he continues frowning.] I know what you meant, but... [He shakes his head a little and gives a little sigh, more exasperation than annoyance there now, then moves back into regular conversation.] Good. The only other person I can think of that I'd willing consider dancing with is my sister. ... Definitely not like this though. [The last part his murmured more quietly, his blush making a comeback. And just so Will doesn't think he's mad at him about teasing him...] I don't... mind the teasing most of the time, from you. Not that much. Sometimes it gets annoying, but... I'm not, you know... really upset about it.

[He hopes Will doesn't react negatively to what he said, because he doesn't want to go back to his apartment with Will upset at him. ... It sparks a realization in him though, about how much he trusts the other demigod. Normally, he'd just glare and push the person away, keep his thoughts to himself and leave, because Nico di Angelo does not often talk about his emotions openly. But because Will's been persistent and determined to be his friend, hasn't shown any sort of discrimination towards him that others have, he feels comfortable enough with Will to say when he's said something that's seriously bothered him, trusting (or at least hoping) that Will won't push him away for it.

Aaaand he's gone back to staring at the floor in embarrassment at being flustered again.]