Because seven ate nine.
The older stiffened, hearing his own hearts beating in his chest as Nine’s fingers cupped him, his thumb running along the hardening of his length; He had no idea that he could be such a cocktease. And it wasn’t enough. With his breath warm, he made sure to lean up to Nine and let his lips travel just over the younger’s jaw line, and then his ear. He couldn’t help but smile at the thought- he remembered being somewhat self conscious about those ears. He wanted to give into his teasing- ask for more, and just as Ten’s lips parted he shivered instead, his torso rising uneasily. “Oh-“
God, he hadn’t been in this situation in months now- He wasn’t as sexually active as Nine believed him to be. Using his mouth for something other than talking, he pulled the ninth Doctor down more and let his mouth kiss his neck softly, almost lazily- until he bit him. It wasn’t a hard bite, but it was enough to leave a a read imprint of his teeth. “Get on with it- or i’ll bite harder.”
The Doctor closed his eyes and moaned—he couldn’t believe it, but he actually did find pleasure in the bite. He almost wanted to find out just what will happen if he let Ten bite him some more but the instinct to dominate still controlled him. So he continued his teasing, this time he ran his hand up and down the older’s thigh, occasionally slipping under the elastic of his briefs but not really touching, waiting for the sweet retribution he’d threatened.
He planted one elbow beside Ten’s head and tugged on his hair to make him meet his eyes. Not too rough, but not your average tease either. “Stop talking and do something.” His other hand didn’t miss its beat in working Ten almost towards the brink. “Or are you only going to be the obedient little pretty boy?”
Ten hissed through his teeth trying his absolute hardest to imagine Nine’s mouth around his entire length, his fingers running over his thighs; The moments ebbed and flowed for what it was worth, and soon enough he found himself getting frustrated with Nine’s little game. With a small buck of his hips, he began to whine softly both of his eyes closed tightly. It seemed that just as his body began to build up it’s pressure, the younger pulled his hand away skillyfully. And it began to make Ten growl. “And you say tha’ I’m the annoying one, mate.”
Pulling on his neck ,he pulled them just so their lips met as a distraction to how he rolled them over. He was quite annoyed with Nine and he wasted no time in punishing him for it. His mouth slid over his other’s before nibbling quite hard on his bottom lip. “I hope Rose asks wha’ the bruises are from.” Without warning he craned his head to place a gently kiss to his shoulder, letting his tongue slide just over his collar before his teeth sunk harshly at his paled and sensitive flesh; The noise that the other made after almost made up for Nine’s lack of sexual prowess. With their hips rubbing up against one another’s, he made sure to rut slowly just so the outlines of their erections ran up against one another’s. It felt lovely and hot and godammit Nine, let me handle this. Heat made him stiffen soon enough as the movements spread up his spine, and then down his thighs his mouth unable to stop itself; He bit harder once again against the younger Doctor’s collarbone, whining a deep moan of pleasure. “M-more…”