Now that 50 Cent has a new son in his life, the 16-month-old Sire Jackson, it seems he's been neglecting his older son, Marquise Jackson, this according to Marquise's mother. If you'll recall, there was a domestic violence dispute between Sire's mother, Daphne Joy, and Fif around the same time it was revealed the rapper had a second son, however the domestic violence charges were later dropped.

16-year old Marquise Jackson allegedly hasn't seen his father in two years, his mother Shaniqua Thompkins tells TMZ the last time Fif and his eldest son were face-to-face was in May 2012, which was several months prior to the birth of Sire Jackson. In fact, Marquise apparently didn't know about his new half-brother until the word broke on the internet. TMZ goes on to say that Fiddy hasn't spoken to Marquise since they had a big fight in January 2013 which turned public after harsh text messages between either side were revealed.

Fif has recently been showing a lot of love for Sire, even posting several photos of the his baby boy on Instagram before later removing them (you can check out a few of the flicks above). A rep for 50 has responded to Shaniqua's accusations saying, "50 is saddened by the attention-seeking tactics of his son's mother. He remains a proud and supportive father and feels blessed to have two sons."