Jackson turned himself in at the Hillsborough County Jail.
A football star has been charged with sexual assault for the second time in a month.
Jackson had originally been charged with sexual battery stemming from an incident on May 1, when he allegedly committed sexual battery against a woman on campus.
The University of South Florida football player in the middle of a legal case which resulted in a judge slamming coach Charlie Strong has been arrested again.
Circuit Judge Margaret Taylor told the defensive end during a hearing on Wednesday that she is a USF graduate who is "embarrassed and ashamed" to be an alum in the wake of the two arrests.More news: Pyongyang reiterates resolve to fight against US
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According to Jackson's first arrest report, a female victim told police he pushed her into her room and "she attempted to prevent him by placing her hands on the walls" before she was assaulted.
Taylor has since recused herself from the case.
Jackson was released from jail Wednesday afternoon after posting a $9,500 bond. She told detectives she washed her hair in her bathtub while remaining clothed, the Sheriff's Office said.
'Afterward, Jackson made the woman drive to a nearby pharmacy to purchase an emergency contraceptive and ordered her to take it in his presence.
A judge presiding over the first court appearance of Jackson not only had harsh words for the athlete, but challenged Strong's leadership of the program. "We have wonderful young men in the USF football program who choose to do the right thing every day", the coach said. He joined USF after transferring from Hinds Community College in Jackson, Miss. After that incident, head coach Charlie Strong suspended Jackson from team activities while the legal process played out.