>>66531
The Pearl, The Autobiography of a Flea, and The Romance of Lust specifically. They a collection of Victorian erotic stories mostly written anonymously during the time period and you can find them online. I know it's not for everyone, but it's been some of the best stuff I've read in terms of teasing and getting the mind going. I found them to be good if you need to play an aristocratic character or even one from the time period, but it's even a good example of how to write out scenes with less explicit language.
Aside from that, I don't think that I get as much experience from books as I do play. Books I find may give me new ideas or even help me define my writing style a bit more, but otherwise I've found that skill just comes from play and "getting gud". I sometimes look back at my notes from 2 years ago compared to now, and wonder how I managed to get/keep play back then.