I know in fishing village but I only get one option which is the same as before. Maybe the variant scenes are ones only when first encountering Tank at fishing village.
I think it depends on how you defeated Tank in the first fight.
Like my character is a bottom but I got submissive Tank because I topped him then.
Just like the Northern guards you meet on the road. You can top them to win their affection, and when you desided to submit to them for once, they'll ride you instead of fuck you ~