London, Apr 21 : Russian popstar Oksana Pochepa, who claims to be Mel Gibson's lover, maintains a sex diary to record how often she has slept with guys.
The 24-year-old beauty even rates all her men as to how well they satisfied her.
"She once showed me the diary and I could barely believe it," the Sun quoted a pal as saying.
"Sex is the main thing for her," the pal added.
Pochepa says she is smitten by the 53-year-old actor and hopes their love is "strong and long-lasting".