A junior radio worker wept in the toilets moments after her "grandad"-like colleague, veteran DJ Dave Lee Travis, launched a "horrible" assault on her, a court heard.
The woman, who cannot be named for legal reasons, said she was "gutted" when the former Radio One presenter groped her after allegedly hugging her from behind and blowing a raspberry on her face.
The alleged victim told London's Southwark Crown Court that she ran to the toilet and had tears in her eyes after the incident.
She said: "He came in and came up behind me and hugged me from behind and blew a raspberry on my face.
"It was just a bit too close. But then his hand was on that bit of your tummy below your belly button.
"No-one ever touches you there, it is quite personal. When he did that I kind of went to shrug him off."
The witness said that as Travis, real name David Griffin, went to move his hands away, he did so "deliberately and brushed over my breast".
She said she went to the toilet and thought: "Your eyes have filled up with tears."
She added: "I felt really weird. I was confused because I knew it felt horrible."
The woman said she initially saw him as a "friendly grandad-type", who gave bear hugs.
But the woman, who was in her 20s when she worked at Chiltern Radio in the same building as Classic Radio DJ Travis, said her opinion of him changed after the alleged assault.
She said: "I knew who he was because my dad was a big fan. That's why I knew who he was.
"I pretty much avoided him after that (alleged assault)."
Travis, from Buckinghamshire, is charged with 13 counts of indecent assault dating back to between 1976 and 2003.
He is also charged with one count of sexual assault, in 2008.
He denies all charges.
Yesterday, women gave evidence anonymously - behind a curtain and out of Travis's view - when they spoke of his "lechy" behaviour, wandering hands, and "strong, old" cologne.
One witness, a former announcer for BBC Radio 4, recalled how Travis fondled her breasts while she was making a live announcement for its flagship Women's Hour show.
Another recalled apparently having to be separated from the defendant after she called him a pervert following an alleged assault.
The alleged offending includes when Travis was working as a BBC DJ, as a broadcaster with Classic Gold radio, while appearing on Top Of The Pops, and when starring in panto.