petty sex

refers to a situation in which one's partner displays selfishness, indifference, and laziness during intimate and sexual moments, showing little to no emotion or effort and causing the other person to feel unimportant, hurt, and undervalued in their relationship.

Jeff felt hurt and undervalued in his relationship because his partner consistently engaged in petty sex, showing no care or effort towards his pleasure even though he make sure his partner was always happy