New things sorry long post

So i have been with my fiancé for just about 7 years now. We use to have sex a lot in the begining of the relationship. Now not so much. Im not entirely sure why we stopped having sex as much. My thought is that we may be getting bored of it always being the same way. Its always in like 3 ways him on top doggie and the rare occasion that he lets me get on top.

I have suggested trying new things and he seems to be open to it. So much to the point of i made him a cute little container of different positions or things we could try such as spanking blindfold being tied up. He seemed open to it. The first thing we tried was me slapping his ass when we were having sex and he seemed to enjoy that quite a bit. So the next time he tried to slap my ass while we were having sex, but he didnt actually slap my ass it was more of him just holding my ass. He just seemed scared to do it. I really want to try new things with him and the idea of him spanking me just turns me on so much but im scared to ask him to do this because it dont seem like he is into it or trying anything for that matter.

Now every time we are about to have sex we fall back into the same patteren of it always being the same.

Any ideas on how to fix this? I just want my old sex life back with him. I love him so much but it feels like a part of the old us is missing.