— Russell Simmons (@UncleRUSH) February 19, 2014
The man in question is Tim Leissner, a senior-level businessman at Goldman Sachs.
The couple was photographed together while on vacation in St. Barts in Dec. 2013, but has kept their relationship relatively low key. The vacation was a family affair that included the lovebirds, Kimora's children and even her ex-husband.
Kimora and her ex have remained on good terms since divorcing in 2009, and they actively co-parent their two daughters. Based on his tweet, Russell seems happy to have welcomed Leissner into the family, but Kimora has yet to publicly comment on her relationship status.
ALSO ON HUFFPOST:
Spilling the tea 24/7. Never miss a beat. Learn more