...I Wasn't Sure If It Changed Anything...

So I started seeing this guy... not really dating per se, more like casual hookups. We've been going out for a few months now and we get along well enough. But there's something he does that makes me unsure if I'm okay with it or not. We had just met up one day at his place. Usually when we see each other we do... you know, the fun stuff right away, no foreplay. It's always been quick and straightforward, and that works for both of us. But this time... he wanted to take things slower... He undressed me slowly while I did the same with him... touching every inch of my skin as if it were his last day on earth. And then he pulled out a bunch of toys from somewhere... I was kind of surprised because we usually just do vanilla stuff, but hey, no complaints here. We played around with them for a while... and then he suggested this other thing that felt more serious to me... roleplaying as my uncle or something like that. At first it seemed kinda funny and different, and I was curious too so why not?... But during the actual sex... I wasn't sure if I could do it. The thought of being with someone who's technically an older figure in a family setting started to feel weird... Like, I'm comfortable being intimate but when he talked about family stuff during it, it made me hesitate. I wanted to stop him, say 'no', tell him it felt too close to crossing boundaries. But he was so into it, and we'd never tried something this specific before... Maybe he thought I would like it too?... So I let him continue... And there's been this nagging doubt ever since then - did that mean something different in our relationship now? Am I okay with pushing those kinds of limits if someone else enjoys them so much? I want to talk about it but I'm not sure how. Does anything change because we experimented like that, even though I let him go through with it?...