David's eyebrows just about lifted into his hairline as the irony of the situation hit him, thick and hard right between the eyes. It was like the return of a bad dream, except this time he was on the other side of the asking, becoming the one responsible for someone else's hopes and wishes. The way he'd felt last night, swallowing his disappointment, made him seriously consider his response with a poignancy borne of regret and even a little frustration. Nothing would come easily to him, it seemed - though he'd had it easy for quite some time now, so perhaps this was what he deserved. It was what he'd been hungering for, either way; for complications, for substance. Why look a gift horse in the mouth?
He sat up slowly, pulling away from Cain both because he couldn't think clearly while he was being touched and also because he needed something to do that would give him time to compose a decent answer. His expression smoothed into a thoughtful smile as he neatly crossed his legs tailor fashion and looked sincerely at Cain, his hands rubbing slowly up his thighs to rotate slowly around his knees as he cupped them; further evidence that he was thinking, not just figuring out how to shake the appeal off.
"I have been thinking about it, actually," he began seriously, looking into Cain's eyes. "More and more lately, I've been thinking that I'm ready for it, that I might start looking for something serious, someone to spend more time with that would allow me a deeper connection than just sex and a feeding. I guess... coming here tonight I was always going to be feeling you out in that sense and I'm glad that you'd be interested because I like you, too. The thing is... I haven't been seeing just you," he hinted regretfully, certain that Cain didn't need to know the details about Bill but he did deserve the chance to question him on it.
Frankly, he didn't feel ready to make a clear choice here, especially since he could see benefits for both his mortal lovers, as well as drawbacks. Despite that, he also wasn't going to deny himself both of them by holding out hope for one and getting neither. He was his mother's son enough to believe in serendipity and that whatever would be was meant to be. If Bill couldn't commit to him immediately and Cain could, well, he was obviously meant to be with Cain. If Cain wanted to know exactly what he meant about not seeing others and decided he wasn't interested in being (sort of) two-timed, then that was meant to be, too. He watched the mortal nervously, his fate in those warm, rough hands.