Yup, the metaphor still works nicely. And you know how common it is for people to enjoy a nice cup of tea, regret it the next day and then tell everyone they know they were forced to drink it? Yeah, people do that all the time, don't they? 
As for scenario 1- as you describe it, nothing to see here, woman changed her mind, they shared a lovely cup of tea, no problem.
However, there may be a much longer story between the 'No' and the 'Go on then', involving sulking, tantrums, guilt tripping and a history of nagging until the woman drinks the tea. Which would rather change the situation.
I can only imagine the 'Go on then' being reported as rape, let alone getting anywhere near a court if there was a much bigger back story.