We have no secrets at all, but my wife never told her ex-husband of 10 years how much she has always loved anal sex and used to masturbate all the time with dildos in her ass when he wasn't around. It wasn't that she hated him or anything, he was hung like a horse and used to fuck her hard for hours, and she said, if she'd told him she loved it in the ass, he wouldn't have known how to do it right without hurting her, or he'd want it every day, so she said she kept that one thing from him just so it was something special for her when she was alone.