Meet at the Planner.

Beth paused in the act of pulling her sports bra over her tits to grab at her buzzing phone. It slipped from her grasp, and she cursed while fumbling under the seat to get it. When she finally pulled it back up towards her face, there were several texts from Brian.

Brian: Hey. Frank just called me. He needs me to swing by the office prep something for him real quick
Brian: So I'll probably have to meet you at the planner's

Normally, Beth would be annoyed at Brian needing to go in to the office yet again to do extra work on a Saturday, but considering the fact that Kyle's cum was currently sliding down into her stomach, she didn't really feel the same irritation that she would normally feel.
"What's going on?" Kyle asked. He had fully redressed.
"Brian's going in to the office after the gym to do something for his boss. Typical. He said he's going to meet me at the planner's office."
"Wow... he really is a workaholic, huh?"
"He's become one..." she sighed, and smiled at Kyle. "Lucky for me..." she patted his crotch. "You came home when you did."
"Fuck... I..." Kyle was clearly conflicted. She was certain that he enjoyed what they were doing, and he even seemed to like her as well. But despite his desire for retribution against Brian, they were still brothers.