So this is just a little one shot that popped into my head one day so I decided to upload it. There isn't any spoilers and Booth and Bones aren't in a relationship.
Dr. Lance Sweets studied the couple in front of him. Usually these weekly sessions were always the same. Agent Booth would sit there and pout while Dr. Brennan's mind would think of all the things she could be doing. Today was different however. Today, Dr. Brennan was sitting on the couch pouting while Agent Booth was grinning from ear to ear. Sweets was actually worried. Booth smiling for no reason is never a good thing.
"Okay you two, what's up?"
Booth rolled his eyes. "Real professional Sweets."
"Leave the boy alone Booth," Dr. Brennan said.
He tried again.
"Anything you guys would like to talk about?"
Simultaneously Booth said yes where as Brennan said no.
"Booth," she said, obviously annoyed. "I thought we agreed not to tell anyone what you saw."
He shook his head. "No way Bones. You told me not to tell anyone. I didn't agree to anything."
Sweets' mind started racing. What exactly did Booth see?
"So," Sweets said awkwardly. "What exactly did you see, Agent Booth?"
Booth ran his hand through his hair.
"Well Sweets, I think I've rubbed off on her."
"I don't know what that means."
Sweets counted that as the fifth time he heard her saying that today.
"Of course you don't Bones. All I'm saying is that you're starting to act like me."
"So you dance around your apartment in your underwear?"
Booth's cheeks flushed.
"See!" She pointed on of her long delicate fingers at Booth's face. "You're embarrassed. Now you know how it feels. Sweets, tell him he's being completely irrational telling you this story."
Then she crossed her arms with a barely audible "humph."
Sweets eyes widened.
"Agent Booth, correct me if I'm wrong b-"
"Gladly"
Sweets narrowed his eyes and continued. "But did you see Dr. Brennan dancing around her apartment in her underwear?"
Booth nodded his head. "She was singing Hot Blooded and she was wearing the polka dot socks I gave her. I used the key she gave me to surprise her with some Thai and there she was."
"Did she have any other clothes on," Sweets managed to ask.
"Of course I did Sweets," Dr. Brennan exclaimed. "I don't simply walk around my apartment in just my underwear."
Booth looked at her. "Don't forget the socks."
She sighed. "And yes, the socks."
Booth looked back at Sweets. "She was wearing the Foreigner shirt I gave her."
Sweets managed a smile.
"Agent Booth," he said, "how exactly did this make you feel?"
Booth's grin turned to his full blown smile, clearly showing his pearly whites.
"I've never been prouder."