I enjoy all smells off a Giant, good or bad I think it can play an important role in size kink specifically for the reasons you mention Ripper - you just can’t escape it! His smell will be just soooo overpowering
My husband uses smell, usually bad ones to humiliate me. But there are ways to feel subby while enjoying good smells too! Last night actually, my husband and I decided to shower together, and he demanded I “shrink” (aka get on my knees) and soap and clean his lower body. After I was done, he demand I do a smell test…and he did not take my hesitancy lightly. He shoved my nose straight into his asshole and made sure he could hear me inhaling. He did the same with his dick/balls, and made sure I gave him a suck for good measure.
Luckily I did a good job. Everything was very pleasant smelling, but he still made me feel small and pathetic…so score!