Lil Twist, Justin Bieber’s controversial pal, has been accused of physically assaulting a woman at Bieber’s Calabasas home.

Law enforcement tells TMZ that the unidentified woman was spending time with Twist at Bieber’s home, who was not there at the time. When the woman decided she was ready to leave, around 3:30A.M., Twist grabbed her arm in effort to make her stay. According to the report, the woman went straight to the police and the situation is currently under investigation.

Twist has caused nothing but bad publicity for the “As Long As You Love Me” signer. Last month Twist was arrested for a DUI after speeding in one of Bieber’s luxury sports cars. He was previously pulled over in Bieber’s car in March and again in January, at the time that a paparazzo was killed trying to snap pictures of Bieber, who was not driving at the time.

Twist was also accused of being a negative influence on the 19-year-old singer after photos of him smoking marijuana surfaced earlier this year.

Image: Lil Twist Twitter