Name that book- erotica

Hello,
New to the group. I have been looking for a book for over a year. I only got about 1/4 way through the book before my husband sprayed it with spider spray.
It was a romance erotica set in early - mid Victorian times(period piece). The main character was an orphaned maid/housekeeper. She had a red long hair if I remember.
She was cleaning a library room and a man ,orphaned higher class man related to the house master(female) came in and they had sex on a little couch extremely fast after they looked at art books of a swan.
There was also a passage about them having sex in the kitchen while house master was at church. They returned early and caught them. The lady of the house sent the red haired maid off and I forgot what happens to the man.
The lady takes a wagon ride. Ends up in Europe..France? I think. Lives with a bouncy blond. The red haired lady is taken under her wing and looks through a hold in the wall to find her friend (blonde) doing incredible things with a man.

Unfortunately this is all I can remember. I believe it had a red paperback cover.

I’m desperate to find it. Please help.