In mainstream romance novels, such explicit sexual content is not typically considered appropriate. Romance novels usually focus on the emotional connection, courtship, and relationship development between characters, with any sexual content being more subtly and tastefully alluded to rather than graphically depicted.
It depends on the target audience and the standards of the publisher. Some niche or erotica - based romance novels might include such content, but in general, traditional romance novels aim to convey love, passion, and emotional intimacy in a more refined way. For example, a classic romance like 'Pride and Prejudice' builds the relationship between Elizabeth and Mr. Darcy through their conversations and social interactions, not through such explicit sexual scenarios.
No, it is not. Romance novels are meant to be about the romantic relationship, which includes elements like love, respect, and emotional bonding. While there may be an element of physical attraction, directly depicting such an act goes against the essence of what a traditional romance novel is. It can make the story seem more like soft - core porn rather than a genuine love story.