Usher and Kimora Lee Simmons have a history of creating steamy moments. This year marks the 25th anniversary of the music video for Usher’s hit single, “Nice & Slow,” starring Simmons as the then-newcomer’s love interest. Over the weekend, the two proved their chemistry is still strong. On Saturday, Simmons attended Usher’s  My Way: Las Vegas Residency  show with Kim and Khloe Kardashian, but she became part of the R&B icon’s performance.  As the sold-out crowd cheered on, a bare-chested Usher pulled Simmons out of her VIP seat as they relived their moment from the 1998 video. He said, “She was this tall back then,” as he began serenading Simmons while holding her close.