San Antonio’s fire union on Thursday said it would only agree to the city’s proposed 4% annual raises if they’re accompanied by a 21.7% boost to its members’ annual base pay. That equates to a 33.7% pay bump over the next three years — an increase Deputy City Manager Maria Villagomez called “unrealistic” during a third meeting with the union over its collective bargaining agreement, which expires in December. “It feels to us that you are negotiating for what happened in the past 10 years,” Villagomez said during Thursday’s meeting.