Love scenes in romance novels (or any type of novel really) should be organic to the story. I don't believe in writing love scenes to meet a quota and thankfully, this isn't a problem when writing for Harlequin. Some of the lines have different heat levels, but there's no number of pages or certain number of love scenes required per book.
In my current work in progress, I have two characters who come from very different backgrounds, culturally, socially, and economically. The heroine of my novel is Muslim and she believed until recently that she would have an arranged marriage. For this reason, she isn't experienced with men and generally avoided being alone with them.
When the hero becomes part of her life, because her arranged marriage is no longer an option, she is thinking differently about what she wants for her future and from a relationship with a man.
The dilemma I have is that I am not sure how she would react to a new sexual experience with the hero (at this point, kissing/touching). Would she feel excited? Guilty? Awkward?
And how would the hero react to knowing she is inexperienced with men? Would he be hesitant? Try to resist her?
How do you get into the emotions of a love scene and explore what your characters are feeling?