The dude was kinda stupid for saying that. As every man should know, when a woman asks for your opinion on if something looks good on her, you always say yes, even if it's not true. (But it was true this time.)
A gf like her I'd definitely want to show off her curves. :3 She didn't have to wear the micro bikini underneath but she knows it'll amp up him up during sex. lol. She ended up initiating sex too.