He said the abuse would take place regularly after Bennell picked him up.
Unsworth alleged that sexual activity escalated and eventually led to Bennell raping him "about half a dozen times".
"He would move his hands around your body on the outside of your clothes, tickle you, and you would have to do the same to him", the alleged victim testified.
"That game was pretty much ongoing until, basically, I walked away from football", he told the court.
One of his alleged victims said he recalled concerns being raised over the defendant's behaviour with children when they stayed over at his home but Bennell was able to provide reassurance to parents, the court heard.
He said: 'That was his scene, he would try and scare the lads'.
That alleged incident was interrupted by a team-mate who Bennell then pinned against a wall and threatened he would never play football again if he spoke of what he witnessed, the jury was told.
"I was just crying, the pain".
The complainant said Bennell had a set of bunk beds next to his own bed in the room above the video shop he ran, adding that "he always put music on in the bedroom. It felt like it went on for hours but it was probably two or three minutes".More news: Baylor Coach Matt Rhule Reportedly Removes Himself From Colts' Coaching Search
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The court heard Bennell would "play fight" with the boys and put on horror films for them to "soften them up".
During questioning by Eleanor Laws, defending Bennell, the complainant said he was not testifying to get compensation, but because "this is about justice".
When interviewed about the allegations he faces, Mr Johnson said Bennellclaimed he was the victim of a "concerted effort" by people to make false allegations.
Mr Unsworth, who was also coached by Bennell at Crewe Alexandra, said the only times he had spoken about the details of the alleged abuse was on the Victoria Derbyshire Show, to the police and today.
The ex-Crewe Alexandra coach is still due to stand trial for 48 offences, including 35 counts of indecent assault.
Bennell denied abusing Unsworth but admitted that he had stayed at his house and slept in his bed.
Bennell denies the offences of indecent assault, buggery and attempted buggery against 11 complainants, who were aged between eight and 14 at the time of the alleged offences.
On the third day of the trial at Liverpool crown court, the same complainant told the jury that Bennell's house in the Peak District - described by Bennell as "a kids' paradise" - had a pool table, a fruit machine, a jukebox and was filled with sports equipment, but said there was excrement everywhere from dogs. A jury is expected to be selected for his trial later on Monday.