@Sensualcouple2016 Sorry this is long… I was there with my husband recently. We were each others firsts as well. We were really sexually active early in our relationship (we’ve been together about 15 years), then things slowed down, and we had sex less and talked about sex even less. We’ve always had really good open and honest communication, just sex talk became really awkward. When we did have sex, it was doggy or missionary, and I was too embarrassed to say if I wanted something else. He used to talk dirty to me when we were dating, but he’s gotten really shy about anything sexual and gets really embarrassed. When we were having sex less, he started having some performance anxiety issues which made him even more self conscious. He’s gotten a little better the past couple months (talking about sexual things), but he’s still pretty shy to talk about sex except for when we’re actually having sex.
It helps to browse the LH site together and talk about different toys. It made it easier for him to talk about things because it was almost like he was removed from it or he was just talking about facts about the toys rather than his own sexual desires. I send him links to different products so he can check them out at his own pace without feeling the pressure of me sitting next to him watching his reactions. Maybe buy her some new lingerie. I feel extra sexy when I’m in lingerie, and when he’s ogling me, it turns me on even more. Maybe take things slower before sex, draw out foreplay to really get her feeling good and set a really intimate mood. If you think she wouldn’t like sex games, maybe try the oral sex dice or foreplay dice sets to help with introducing some new things.
Does she know you’re on the forum? I like to bring up things people write on the forum because it’s not you bringing it up, it’s someone else bringing it up, and you’re just commenting on it. ”Oh, someone on the forum did [xxx] for the first time with their partner and really liked it. That would be really fun to try.” “This person just got the [whatever] toy and really likes the [whatever] function on it. Doesn’t that sound kinda interesting?” I seriously do this all the time to bring things up that he would definitely not want to talk about if I just said “Tell me what you think about [xxx].” He doesn’t really like to read posts on the forum, but he’ll read one here and there if I ask him to if I think it’s relevant to him. He’s now read a couple threads about edging. We also regularly check out the positions of the week thread to find new positions to try. Some of them have been total failures for us, but some are now our favorites!
When I was listening through all the sexual happiness podcast episodes, I sent him a couple to listen to on his own that I thought he’d find interesting or helpful. Any that I thought he wouldn’t listen to, but I just wanted him to hear part of it, I’d coincidentally play it when he’d be around to overhear it, and then pause it and ask what he thought about it. Now he likes the podcast and is going back through and listening through some of them on his own.
It’s easier for us to talk about sex these days, but he’s still shy about it. Everyone is different and has their own pace I guess. Even though I’ve gotten pretty bold and blunt when I have something to say about sex and sex toys, there are some things I still get embarrassed to tell him 
Hope you’ll be able to tactfully broach sex talk with her and slowly start spicing things up a bit 