Sexually active but husband has low stamina.

I'm a sexually active person and I really want my SO to be able to match my stamina. When we go at it we like to get creative and try different things. But what I've come to find out is most of that trying different things is him trying it on me. And I'm ok with it for the most part. But I want to be able to have my fun to you know what i mean. I want to be able to try some things on you like you like to try things on me. Mabey not the exact same things but somewhat similar. Like dressing up, using oils and lubs things like that. I feel sexually frustrated. I know I can't make him do anything he doesn't want to but he has already previously agreed to it. And every time I bring it up he says well do it soon but it feels like it's never going to happen. I told him if he's uncomfortable with it to let me know. Be upfront about it. Because it just feels like he's making a bunch of excuses and it's just never going to happen. Am I overreacting? Plz no rude comments.