Leonard McCoy was never one to sleep around, having opted for a night in with work and a nice drink. Casual sex was Jim's thing, going out after his final class of the day with the lucky winner of his attention for that day. Leonard was a doctor, not a sex maniac. Before his bitter divorce and in the early stages of their marriage, Leonard and his ex-wife had sex constantly. They were young and living alone in their brand new house, giving them all the privacy in the world to do what they pleased. Then they'd gotten pregnant and the sex slowed down to every other day, because his ex had grown tired and self-conscious of her body.

When the miscarriage happened, everything had changed. Leonard turned to his work and booze, while his ex-wife turned to his best friend. The sex between them stopped, and Leonard took to furiously jerking off in his office or in front of the television late at night; picturing anyone but his wife, who'd turned away from him during her grief. Then they'd divorced and Leonard was boarding a shuttle to Starfleet, becoming friends with the one man who lived off of sex.

After eight years, the only time Leonard ever had sex with anyone, occurred only after a handful of dates with the same girl. The dates never lasted more than a month or two, since he was always working or jetting off into space with his friends. But having that brief period of a commitment, something with a potential to grow into a long lasting relationship, made him feel good. It made him feel normal.

Now, lying under a thin sheet in a bedroom that did not belong to him, Leonard tried to figure out what had happened in the last four hours. Part of him should've said no; he should've pushed her away and left, returning to his own quarters to work or drink himself to sleep. Instead, he dragged her to the bed and watched as Evelyn removed her clothes, dropping them to the floor.

"God, you're beautiful," he told her, as she stood before him. "Gonna make you feel real good."

It should've been wrong, watching her wrap her plump lips around his cock, sucking it like she was born to do it. Or how it felt when he finally slid into her, right up to the hilt; gripping him as he stretched her. The sounds Evelyn made with each thrust, a mix between whimpers, growls and moans, every time he slammed into her body. He should've stopped when she begged him to go harder, faster, and deeper with each stroke.

"Come on," she moaned, as she lay on her back; her hips held tightly in his grip, as he plunged into her. "You said you'd make me feel good."

Afterwards, as Evelyn slept like the dead against him, Leonard stayed up and watched her. He couldn't go to Jim about this. It wasn't something you brought up casually over breakfast or after the weekly morning meetings. And part of him didn't even want Jim to know about this; how Evelyn came to him and asked to be fucked. Leonard McCoy didn't want Jim Kirk to think that Evelyn Burke was an easy fuck. Come morning, the doctor wouldn't know for sure where they'd stand; Evelyn was still a patient and he was her doctor. But doctors don't screw their patients, engaging in explicit sex acts, and go on like nothing happened.

With a sigh, Leonard shifted under the sheet and closed his eyes. Tomorrow, he would talk to the younger woman and figure out what to do next.

….

That conversation never came as a page blared through the ship's intercom, calling him down to Medical. He cursed, stumbling out of bed and grabbing his uniform off the floor. Evelyn groaned from her spot on the bed, rolling over to look at him.

"What are you doing?" she asked, as he pulled his pants on.

"I'm being paged," he said, searching for his shirt. "We need to talk later."

She nodded, "Okay," she yawned. "Should we meet up for a late breakfast? In the mess hall?"

Snatching his boots off the floor, he quickly pulled them on. "I'll page you to my office," he said, looking around the room quickly. "I can pull something up from the replicator and we'll talk.:

"I'll see you later then," she settled her head back down on the pillow, leaving the sheet around her waist.

Leonard stared at her naked form for a moment, tempted to crawl back between the sheets and settle his face between her breasts. But he knew that he was needed in medical, and that he was responsible for everyone onboard.

"Get some sleep," he said, before moving to the door. "I'll call you!"

…..

"Bones! Where the hell have you been, man?" Jim asked, as soon as Leonard stepped into his office. "I've been calling you're room for the last twenty minutes!"

Leonard sighed, "Maybe I was ignoring you?" he snapped, moving to sit behind his desk. "Or sleeping? Did you ever think of that?"

Jim made a face, sitting down on the couch against the wall. "Maybe you're a grumpy bastard, who likes it when I annoy you constantly?"

"You wish," Leonard snorted. "What do you want, Jim?"

The young man sighed, "I've been up since the crack of dawn on a conference call with the brass," he yawned. "They want us to pull out of the Miranda crash and drop Evelyn off at Star base 6 in four days."

Leonard looked up, "What?" he asked. "We can't!"

Jim frowned, but nodded. "That's what I said," he shrugged. "So, we're going to head to star base 13 which isn't too far from here. Stock up on a few things and pick up a few Starfleet investigators and come back to drop them off."

"How long will we be there?" Leonard asked, shifting in his chair.

"No more than a day or two," Jim shrugged. "We're getting low on a few personal items and Nyota was ranting about some type of soap that she likes.. I don't know."

Leonard nodded, "Okay," he moved a PADD around the table. "Just let me know when we're there so I can make a list of things I need to get."

Jim stood up, "Will do, Bonesy!" he moved to the door. "You okay?"

"Yeah," Leonard nodded. "Why?"

Jim shrugged, "Nothing, you just look…" he trailed off. "Like you didn't sleep that good."

Leonard cleared his throat, "Was up late doing some reading," he shrugged. "I'll probably take a nap later."

"Make sure you eat too," Jim smiled. "Can't have my CMO passing out on the floor! Pike will never let me hear the end of it, if he thought I was working my crew to death!"

"Kid," Leonard sighed. "You already do with your tendency to act like a goddamn infant! Now get out of my office and do your job! Which is to keep this tin can in one piece!"