Brand, 35, who is now married to singer Katy Perry, 26, admitted not every girl moved the earth for him.
"I was having sex with different women three, four, five times a day. In Ireland, nine in one evening," the Sun quoted him as saying.
"When you have sex that often, by a law of averages you're likely to have boring sex.
"My fame meant instead of taking someone for a date I was able to go, 'Let's do sex right now'," he added.