High school sweethearts needing sex advice

I've been with my husband for 11 years and married for 2. We did break up in college and see other people for a few years in between. I have had sex with other people but it was all drunk sex or short relationships. He's in the same boat. Were sexually pretty inexperienced and tend to do the same 3 positions every time. We have tried things here and there but he always seems to go back to the norm. I'm not very confident in my body and myself so it makes me a bit shy sexually. I want to try more stuff to spice up but not sure what to do. I've bought a sex position book for vday and he has no interest. The only thing he's responded to is lingerie.. Any advice to spice things up would be great! Also, foreplay is pretty much gone and he hasn't eaten me out in years..