Jack thought about pushing the Doctor away as together they stumbled into the TARDIS the door closing tightly behind them. The words were stuck in his throat as the Doctor's mouth never let his for long. They kissed deeply as the Doctor's hands ran down his abdomen pausing briefly on Jack's swelling abdomen. Jack saw the confusion flash through his eyes but it was gone just as quickly as his hands slipped lower. His gasped in the Doctor's mouth as his cool fingers slipped into his trousers. The word stop was on the tip of his tongue as the Doctor's mouth moved lower. All hesitance was gone as he felt the Doctor's mouth find it's target. He gripped the railing behind him tightly in his hands. He was positive that what the Doctor was able to do with his tongue was illegal in at least two possibly three galaxies.
From there he couldn't say how they ended up in the Doctor's bedroom. Jack still wore his shirt as he laid on the Doctor's bed with the Doctor full clothed in between his legs. Jack wouldn't call what they did lovemaking as the Doctor was anything but gentle. He was rough as he held onto Jack's hips with almost a bruising grip as Jack laid on his back with his legs wrapped around the Time Lord's waist. Jack grunted with each movement as he met the Doctor's movements. He slowed his movements as he looked down at Jack's stomach again. Jack felt his shirt brushed aside and the Doctor's cool hand laying on his abdomen. He didn't say anything as he left his hand there for a moment, then ran it down to Jack's groin. He quickly brought Jack over the edge and followed him a moment later with a deep groan. Extracting himself carefully from Jack's body, the Doctor picked up a cloth from beside the bed cleaning himself off before tucking himself back in his trousers. He handed the cloth to Jack as he took a seat on the side of the end bed.
"You didn't tell me you were pregnant," The Doctor stated softly.
"You didn't ask," Jack answered him honestly. "How did you know I am pregnant. I could have just gained weight." The Doctor rolled his eyes at him as he turned to look at him.
"I had the TARDIS scan you," The Doctor admitted. Jack groaned as he sat up on the bed. He was sore after the roughness of the Doctor but it was nothing that wouldn't fade quickly. The Doctor's eyes were unreadable as he got directly to the point. "Whose baby is it?"
"My lover Ianto's," Jack responded automatically. The Doctor nodded slowly.
"So tonight," he trailed off.
"Probably shouldn't have happened," Jack finished for him. He reached off the side of the bed grabbing his trousers as the Doctor hung his head. Jack pulled them on, still sitting on the edge of the bed. They both remained quiet as Jack finished dressing. He didn't run away right away as he put a hand on the Doctor's back. The Doctor pulled away getting quickly to his feet.
"Right, I need to go to Sakaar," The Doctor started to ramble.
"Doc," Jack tried to interrupt.
"And you need to go back to Ianto," The Doctor continued ignoring Jack. He hurried out of the room and Jack followed slowly behind him. He found the Doctor at the controls absentmindedly flicking the switch on and off again. He was staring down towards the console but Jack could still see the pain in his eyes. Jack went and stood beside him.
"Doctor, look at me," Jack told him softly. The Doctor lifted his head, his brown eyes meeting Jack's blue ones. The pain that the Doctor carried was clear once more but he still smiled softly at Jack as they stared each other in the eyes. "I know you expected me to come with you tonight, but I can't, not yet. I have a life on Earth now and soon I will have a child with Ianto."
"I know, I'll stay away and let you live your life," The Doctor responded, his eyes dropping.
"That's not what I'm saying. I don't want you to disappear for another hundred years while I wait for you to return. While tonight can't happen again, that doesn't mean you have to stay away. You can come by and visit anytime you want to. Even if it is just to spend a few hours helping to sort artifacts in the hub or to complain about the way I am running it," Jack informed him.
"I'll think about it," The Doctor answered not flat out telling Jack no. He was trying very hard not to show it but his hearts were breaking. For just a moment, he had allowed himself to believe that the baby was his and that he could build a family with the Captain. Instead, he found himself alone again.
"Promise me that you will come to visit me," Jack begged.
"I promise," The Doctor told him. Jack had no way of knowing if it was a lie as he kissed the Doctor gently on the cheek. The Doctor smiled softly at him, as he reached out squeezing Jack's hand softly. Jack squeezed his hand back, then left the TARDIS. Almost as soon as he stepped out the door, the TARDIS dematerialized leaving him alone once more in his office. Jack stood staring at the empty wall for a long moment before turning and leaving the office. He stopped off at the bathroom, washing his body before going to where his young lover was sleeping. Ianto barely stirred as Jack climbed into the bed taking him into his arms. He felt guilty for betraying the young Welshman and promised him silently that it wouldn't happen again. Laying his cheek on Ianto's head, he closed his eyes and tried to join him in his sleep.