He allegedly attacked his fellow contestant while she was asleep following a night of partying.
They were last seen on camera kissing and cuddling in one of the live show, which is in the South African capital.
After the event, Ngwenya who is also known as Adams told housemates he had sex with his victim.
Though the woman is said to have told female contestants it wasn't consensual.
A statement from the channel which airs the show read: "At this stage, it is not exactly clear what transpired between (the woman) and Adams.
"Having suspected that there may have been an incident of sexual misconduct, Mzansi Magic acted by removing both individuals from the house."
According to BBA, she was removed for her own well being.
It is unclear whether the police has been involved into it.
Photo Youtube/BBA
