I love the idea of making her as uncomfortable as possible, and not only during sex but in life too. Make her eat a super big meal them put her in one of the tiniest corsets/waist trainers and laugh at her comenting thats her fault she ate so much and is so fat and the corset its punchin in her organs. Make her wear the tiniest outfit then chug a galon of water, watch as her stomach grow bigger and bigger with each sip and the blader become harder while the belt is putting more and more preasure on it making her cry and beg for some relife. Make her wear heals in the house all of the time and never let her sit, always fiding some more chores till her legs give up, then beat her and punish her cause shes so lazy. Make her wear only bras and underwear that r like 3 times to small for her, watch as her boobs just fight against the fabric to burst out and the underwear is piching her skin. Just make her life as uncomfortable as possible