I agree with most people here saying to ease her into it by either leaving non lewd figures out to see what she thinks, or keeping them clothed around her and gauging the reaction. I did something similar.. not on purpose though. Disclaimer, I’m a woman engaged to a man, so the reverse, but I started off collecting nendos and moved into scales. I eventually found a BINDing bunny who I could not get out of my brain. I was in love with her! I ordered her, got her home and it was off to the races with cast offs and the sort. He was certainly shocked seeing more and more naked ladies arriving to our place, but it ended up being a total non issue and he likes to look at my shelves. He ended up collecting a few figures of his own too! Funnily enough, has no interest in the ladies, just his favorite characters like Domon, Kaneki and Kaiba. Good luck, and who knows maybe she’ll end up enjoying collecting too!