Looking for two stories:
1st one: In a Dolcett like society, a woman is processed not in the fancy high class facility of her desire, but a rural establishment after being found slightly overweight. After witnessing some botched conversions, she urges the sadistic female owner to take her advice how to do it right. She ends up spitted on a fire pit, I remember an assistant was skinned alive and a young nerdy woman being cooked in a pot. Might have been called "County Abbatoir" (or country), but I may be wrong on the title.
2nd Story, different author, Hanging is the general theme: Woman goes to a club to meet some friends. They have fun together, and one of the women decides to have her Skandinavian slave girlfriend hanged. There is a substance called "SensoBlast"(?) applied to the hanging victims for increased pleasure. I recall that some of the womens names were rather uncommon. Afterwards they watch several games taking place in the club, which are also hanging themed (at least in the part that I read before I accidentially erased it while trying to format for more convenient reading.)