If you accidentally bang your best friend’s younger brother, here are a few important tips . . . One: Do not brag to your friend about how well-endowed her brother is. Two: Do not go back for seconds (or thirds). Three: Do not let him see your muffin top or jiggly behind. And definitely don’t let him feed you cookies in bed. Cookies are bad. Remember that. Four: Act like a damn grown-up and apologize for riding him like a bull at the rodeo. And do not flirt with him when he laughs at said apology. Five: This one is crucial, so pay attention. Do not, under any circumstances, fall in love with him.