There are several production companies that produce these type of films. And it appears to be a gender-driven demand. In general terms it is known as Porn-by-Women-for-Women, under the assumption that female producers and directors are best at delivering the type of erotic film that appeals to women. Some notable producers or directors are former female stars, namely Nina Hartley, Candida Royalle, and Skye Blue.
If you search the web, you will find guides such as this that will clarify the rationale and lead to further information. In general terms, women are interested in stories devoted to story and plot, in addition to sex.
Here the description of Bright Desire, a representative production company:
Bright Desire is about expanding the definition of porn, leaving behind the tired and sexist cliches of the mainstream and embracing positive depictions of sex. This is porn that features real connections, intimacy, laughter, emotion and passion. It features real life couples and a diversity of body types. It ignores the rules about what's "gay" and what's "straight". It's for women, for men, for everyone.