In so far as contrasting their dress I like to think of scenarios along the same lines as Daz. Where the two girls aka “bad” vs “good” are facing one another to show the bf/husband who the better woman is. I too think of my wife/gf going against an ex gf who’s decided she wants me back. Both girls being aware of my desire to see two girls try and prove themselves better start talking trash. Instigated initially by the ex in front of me. Knowing how such a challenge turns me on having told me stories of winning such a contest against my ex before, forces her to stand her ground and not back down while not wanting to fight due to she isn’t sure she could win. Easily sensed by myself and my ex despite her trying to hide it we can see she’s scared. This only emboldens the ex to push it further. To the point she removes her shirt and handing it over to me knowing she has the bigger chests which also is a turn on to me. Knowing hers are bigger and is a contest in itself to compare herself. Challenging my gf/wife to do the same if she’s not scared to show me who’s are better. Not wanting to draw further comparisons to her out gunned chest it’s now she calls my ex a name but obviously flinching when my ex steps into her giving a chest bump. Knocking my girl back and not getting any return response besides the threat she better stop or else causes my ex to escalate. From there it’s a shortly contested fight, that becomes one sided watching my ex toy with and taunt my girl. Ripping the shirt from my girl eventually to force her to be compared with her. So I suppose they start out one dressed to show off her assets while the other desperately wants to avoid a scene where they can be compared side by side.