Share this: A-Rod has some explaining to do. Alex Rodriguez is dating actress Jennifer Lopez, but some new allegations could threaten their relationship. A woman claiming to be a former mistress of the ex-major league slugger recently told the National Enquirer that Rodriguez cheats on Lopez, while also making some interesting allegations regarding A-Rod’s supposed raunchy sex life. Lauren Hunter, who has three children, including one with former NFL star Marcus Allen, told the National Enquirer that she first had sex with Rodriguez back in 2011 — when she still was in a relationship with Allen and Rodriguez allegedly was dating actress Cameron Diaz — and that the two had been in frequent contact before the former New York Yankees third baseman went