“If you can make a woman laugh, you can make her do anything”, Really?

YourFutureEx
“If you can make a woman laugh, you can make her do anything”, Really?

Is it still true in today's world? I mean there are a lot of feminists who say things like "just because I spent a night in your bedroom and we made out, it doesn't mean I owe you a relationship" and more things like that. So, it must be way too hard to actually decide if there's a specific thing/hint to conclude that the girl is really interested and would do anything (within proper limits). It's so-so easy for me (& other gentlemen) to make a woman laugh but I know, to make her do anything is a 'beyond the imagination' task according to today's standards.

What's your opinion?
“If you can make a woman laugh, you can make her do anything”, Really?
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