Nah dude. Not true. Asking means you remove the awkwardness of the "guessing game". My partner asked me when we first kissed, and I found it very hot. He already knew I wanted to kiss him *at some point* as we had been long distance and finally met in person, but it was more about "do you want to kiss right now" (as in, when we got into my car at the airport) and I'm so glad he asked. Otherwise I might have been anxious or felt awkward, wondering if I should make the first move or should he, and was I misreading signals etc.