Amusingly I actually did have a concept for a "harem" story a long time ago.
You were going to play as some intergalatic space arab and seek out a bunch of alien women to put in your harem.
Of course as you might expect not all would necessarily come with you willingly, so you might have to employ some trickery or more forceful methods in some cases. The main focus would be the ADVENTURE of getting the women rather than sexing them up because I'd keep it tasteful and classy.
Obviously this story would have been in the Love and Dating section.