Amber Rose has bigger battles on the horizon than a Twitter beef with one of the Kardashian sisters. According to a report from TMZ, Wiz Khalifa is gearing up to take Rose to court for more custody of their young son, Sebastian. Wiz is claiming that Rose is not living up to her parental duties and has a list of complaints against his ex-wife. Among the grievances, Wiz says that Amber often stays out all night and leaves Sebastian in the care of relatives and staff and that Rose will wake up and only play with the child for 15 minutes before disappearing for the day. The report also says that Rose and her mother have a volatile relationship and have explicit shouting matches in front of the child. TMZ writes that the rapper has not filed court papers yet but he is preparing to do so by reaching out to relatives to help with his case.

Tension between Amber and Wiz resurfaced earlier this month when the rapper went on Twitter to voice his frustration over the way Sebastian has been treated by tweeting, "a woman who would do something to a kid to spite that kids father is a foul creature." Wiz later tweeted that he got to see his son and publicly commented on how much joy the toddler brings to his life.