Let’s pretend you have sex. No, really. So you have the sex and it’s a good workout, the cardio skyrockets, but why not make it super intense. Combine sex with exercise. Oh, but I don’t know any exercises to do during sex you say. Not to fear, Sexual Fitness ($10) is here. Learn new exercises line “perendickular lines”, “the ballerina bunnies” and “crotching tiger horny dragon”. We’d even say it’s fun for the whole family, but that would just be weird.