Exploring

My husband and I have been together for ten years. I was his first sexual partner but I had 4 others prior to our relationship. Our sex life is really vanilla and boring.. we might have sex once a week or every other week. I'll admit it's because of being tired from having two kids and working a lot but lately I've been wanting more. When we do have sex it's great. I just want it more frequently and also want to try new things. I'm especially interested in pegging. It's been my fantasy for the passed two years to peg my husband... it really just turns me on to think about it! He has shown some signs during sex like guiding me and wanting anal stimulation and it gets him off super fast. However I think he thinks that makes him gay which it doesn't. We don't talk about sex at all. So idk how to approach him about it. I honestly just want to buy a strap on and surprise him with it but he's super self conscious about his penis.. yes he's small but it's perfect for me! I've never made it seem like I'm unsatisfied with it all. So for me to just bring up a dildo or a strap on I think he would think he isn't enough. But honestly I think he would love it if he gave it a chance. What would you do? I've thought about just texting him and bringing it up a little at a time.. we never sext or send dirty texts so he would be wondering what brought this on. Idk I'm just so scared of his reaction but then again I think this would be so good for us!