He forgot to knock before coming in cause he assumed the lockers would be empty by then. But they weren't.

The first thing he saw was Catherine's bare back, and her hands tossing at her bra's claps which refused to get open.

He stood there for a second trying to decide if it was better to make his presence known or turn around and leave. By he time he had chosen option number two, the clasp gave in and opened, and Catherine turned around unexpectedly and naked from her waist up. It took her a second to realise she wasn't alone and then she folded her arms on her chest trying to cover herself while yelling "What the fuck are you doing standing there!" in an angry shocked tone that made Grissom's still delicate ears suffer.

Grissom wished Earth had opened under his feet and swallowed him. What was he doing there? What did he know?! He hadn't even decided to stand there in the first place!

A muffled "sorry" was heard and then he was gone.

A soft knocking on his door make him wake from his reverie. It had been almost twenty minutes since the lockers room incident and still the image of Catherine's back was dancing in his mind. He was surprised that after all he had seen of her, it was her back what he couldn't forget. He had always considered himself as a "breasts guy". He thought age was changing his taste for women.

"Come in"

The most dazzling smile greeted him from the other side of the door. He knew his taste for women hadn't changed one bit. His dream woman was entering his office and she had been occupying that top list position through all his grown up life.

He felt himself blush at her sight. Images of her bare mid-section still played on his mind and she wasn't helping erase those images. She had chosen a light blue tank top with a generous cleavage and a little see trough soft material. One of his favourites but sure not a helping one at the moment.

He knew she deserved an apology and he knew she wouldn't leave till she heard what she wanted. He also knew he had nothing to use as an excuse. He should have made his presence known. or at least he should've had the reflex to turn around and leave.

"Catherine. I'm really sorry I."

He couldn't find the right words.

"I. I. I wasn't looking at you".

Catherine folded her arms at her chest again and gave him a glare.

"Well, I was. But I wasn't there so I could look. What I mean is that I didn't go there to look at you."

She was still glaring.

"I have no excuse. I'm sorry. I came in and found you there and I just didn't know what to do. I wasn't expecting that."

Catherine adopted a much-relaxed posture and smiled again.

"I know. I was just surprised. But you should be aware of doors, you now? People often knocks on them."

Grissom's face was deep red and his ears felt so hot he felt they had set on fire.

"I just wasn't expecting that"

"Well, I think seeing someone naked in a locker's room is quite possible actually"

He dared to look at her again when he detected her playful tone in her voice.

"It's common to find some guy shirtless, or the girls changing shoes, but I had never before came in to find. well, that".

He blushed again and felt sorry for himself.

"It's a locker's room, Gil. People do change clothes in there".

Catherine was enjoying her little torture. She was finding the situation quite amusing. She would be pissed off at any other guy coming in and finding her like that, but not Grissom. She was even flattered that he had stayed there looking instead of leaving in a second. She was sure if it had been any other woman, he'd turned around and leave.

"I DO change clothes in there".

"I've noticed"

His face was in a cute fuchsia tone by now. She loved pushing him to fuchsia.

"But you girls often use the shower's area where you have more privacy to do that".

"How do you know?"

He knew where the conversation was leading and he wasn't going to allow her get that far. He had never spied on the showers and she was never gonna make him look like he did.

"What did you want?"

She chuckled a bit at his abrupt change of subject.

"I wanted you to apologise, but you already did so, I guess I can leave now".

Grissom smiled coyly at her.

"I'm sorry, Cath. That won't happen again."

"I know"

She walked to the door and she could felt his eyes glued to her back. She stopped by the door and sighed.

"What?"

Grissom was sure she was going to turn around and make him feel really uncomfortable for looking at her back while remembering how it looked out of her clothes.

Catherine didn't turn around.

"That wasn't the only reason why I came here."

He remained in silence for a few seconds waiting for her to continue but she didn't say a thing.

"What?"

She sighed again. It had taken her twenty minutes to decide going to his office and now she was backing away. She never backed away on one of her decisions. But she had never before decided she would ask him to have sex with her.

"Did you like what you saw?"

Grissom almost fainted. There were so many thoughts running like crazy through his mind at the same time that he felt his brain was going to explode.

After a few moments Catherine turned around to check if he was still in the room or if he had flown out of the window. He was siting on his chair in the exact same position he had been before, only that now his face had jumped from fuchsia to lilac. That wasn't good.

"Grissom, you OK?"

She practically ran towards him and touched his cheek. He coughed a little and pushed her hand away.

"I'm fine. What did you just said?"

Catherine was determined to get what she wanted but maybe this wasn't the best moment ever.

"Never mind. I'll go home now, if you're OK. You sure you're OK? You look purple now"

He breathed, something he had forgotten to do for the last seconds due to all the over processing his mind had been going through and faded back to a slightly reddish tone of pink.

"I'm fine. Really."

She stepped back and walked a few steps to the door.

"I did"

Catherine stopped. Grissom smiled. She smiled too. Without turning around she asked:

"You did what?"

"Like what I saw. Very much."

She walked to the door and locked it. Then she slowly turned around, a mischievous smile on her face.

"You did, huh?"

Grissom was shocked at what she had just done. He was ready for some flirting fun but there was no way he was ever going to be ready for Cath playing Delilah.

" Ejjj."

He tried to say something coherent but his throat was suddenly dry. What was this familiar feeling? Desire? Passion? Oh, no, panic. He was scared to death at what she might attempt next.

"If you liked that, you're gonna love this"