Mr grey...

I'm keeping myself anonymous as I'm so embarrassed by this but recently I've been reading the book Mr grey and I've never been so turned on by it! I've a husband of 10 yrs (we got married really young) and have 2 children. I think it's safe to say are sex life has gone a bit stale over the years. He's a very gentle loving partner in bed but I'd really like to try this dom/sub role and introduce toys ect to the bedroom. My question is how do I tell him this ? I'm so afraid he will look at me like im sick and I don't wanna hurt his feelings by telling him im bored in the bedroom ! Any suggestions welcome! Thanks ladies xx