Husband Harem 2: The Pony Prequel

Cadance was in Pharynx's room as usual, socializing with all the other mares he had taken as wives. It had come as quite a surprise to the princess of love when she discovered that, not only did she have to marry Pharynx for the sake of peace but that marriage under changeling law essentially reduced any woman, no matter how strong and independent, to being soft, mild-mannered and girlishly affectionate despite the knowledge that they had pledged servitude to sexually pleasing their new master and husband while acting as eye candy the rest of the time.

Though there were moments like this, when Pharynx wasn't in the room on account of being summoned by Queen Chrysalis or having to go on guard duty, that the girls all got a little down time to eat, drink and just chat in the hive's little pocket of paradise. Cadance was talking with Luna and chuckled as she said "I have to say that with all the things I've seen, the thing I didn't expect to see when I first got here was you! More specifically, you going down on Pharynx"

Luna blushed and said "Yes, well... it was my duty that day to pleasure him in preparation for your arrival, though you did get here a little earlier than predicted. Pharynx wouldn't ordinarily showcase what is expected of his new wives the instant they enter the room"

Cadance nodded and went "Yes, I can't imagine that being the case with everyone else, it does make me wonder what it was like their first time coming here as newly-weds though"