“But that if she did not cooperate, there was no way of knowing what would happen,” he continued.
“The last thing Mr Vilda said to me was that we should bear in mind the professional and personal consequences that all this could have for my sister,” he added.
Prosecutors are seeking two and a half years in prison against Rubiales, one year for sexual assault for the forced kiss and 18 months for allegedly coercing Hermoso, 34, to downplay the incident.
Rubiales, 47, has called the kiss an innocuous “peck between friends celebrating” and denied any coercion. He is scheduled to take the stand on February 12.
Vilda and two former federation officials, Ruben Rivera and Albert Luque, are on trial alongside Rubiales.
They also stand accused of trying to coerce Hermoso with prosecutors seeking 18 months’ jail against them.
Jenni’s teammate Misa Rodriguez told the court the striker was “under a lot of pressure” and “started crying” shortly after Rubiales talked to her on the plane.
“At no point did she tell us that the kiss had been consensual,” the goalkeeper added.