I can have an "orgasm" (pleasurable contraction of muscles, ect...) as many times as I want all in a row but it doesn't mean something is always going to come out- if you know what I mean. There's a limit to that stuff. Sorry.
When I was a kid in school they called it "shooting blanks."
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To answer the question in the post, don't nag or annoy him. Odds are, if you're together already he already finds you attractive enough. After that, it comes down to personality and compatibility, etc...
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