He humiates you and your girlfriend's pussy gets wet

Any scenarios (true or fiction) where a big man either ignores you or humiliates you and you don't fight back (or lose fighting back) and the girlfriend/wife who was initially on your side gets excited and can't help herself... and sucks this bigger man's cock and/or has an orgasm with him in other ways. ??
forced to suck

Had it happen before with me but I was the bigger guy that fucked the wife after her hubby got smacked down.
The best pussy is always married pussy

Example:

It was our first time at a nude beach. This guy walked over within about 2 feet of my wife's face who was lying on her back on a towel propped up on her elbows so she was at 'cock level' to him. She said 'That's nice' then looked over at my small cock. The guy just laughed and asked her for her room number so he could call her. She told him she was married and he said "Yea I can see your ring that's not a problem for me" while just brazenly ignoring me and stepping closer to her with his cock now about a foot from her face and semi-hard. She swallowed and stumred for words for a moment. I noticed her chest was rising more as her breathing became deeper. She was so turned on by his dominance that she gave him the number of our room and hotel and told him to call her.
forced to suck

That was a story I found and modified. I was hoping to inspire others to post similar stories! The idea for this thread is that it's not necessarily about all the 'fucking' details, but it's about that illogical desire she has for his big cock, the man she has decided he is. And it is about the man she has just as illogically decided you are not.
forced to suck