The road back to the TARDIS was uncomfortably quiet. Doctor still had this look on her face, that Yaz couldn't quite identify.

'You okay, Doc?' she asked as soon as the ship doors closed behind them.

'Yes, totally.' she forced a smile. 'I'm absolutely fine.'

Yaz sighed and sat on the couch. She patted the seat next to her which Doctor took quite quickly.

'I can see you're not fine, Doctor. Tell me what's on your mind.' Yaz took her hand and gave it a kiss.

Doctor hesitated for a second. 'I just... Hate David. And I don't know why. He was useful during the war and I think I liked him then. He was a good fellow. But now... I don't know, I just don't like him anymore.'

Yaz smiled and giggled. 'That's very human of you, Doc. That thing you're feeling right now is very normal. You raised Susan. It's obvious you want to protect her.'

'Right?' Doctor asked rhetorically.

'But...' Yaz continued. 'She's not a child anymore. And they've been married for 20 years.'

Doctor sighed heavily and Yaz rubbed her back.

'I still don't like him.' Blonde said.

Yaz smiled. 'I know dear. But you have to give him a chance. For Susan.' She looked her in the eyes. 'Or for me. For both of us.'

Doctor considered it for a moment. 'Okay, I'll give him a chance... If you convince me to do so.' she smiled playfully putting her hand on her girlfriend's thigh.

'Doc, I don't think we have nearly enough time to...' Yaz more tried to convince herself, than her woman, who's hand wandered up her thigh. Yaz gulped.

'Time is actually what we do have... Did I mention I have a time machine?'

Yaz chuckled. 'You might have said something...'

'Please Officer Khan... No one can convince me like you do.' Brunette loved being called Officer Khan, and Doctor knew that perfectly. The atmosphere became heavy and the tension between them rose uncontrollably. To make things harder for Yaz, Doctor decided to take a seat on her lap. Even through clothes, the heat of her body drove her partner almost insane.

'You have some... Pretty strong arguments there, Doc.' Yaz said putting both of her hands on Doctor's bum. 'So... You need convincing, huh?'

Doctor leaned in to whisper her answer to her ear. 'Desperately... The only thing that can change my mind right now is something big and hard...' she pulled up Yaz's t-shirt and undone her bra. Her hands quickly found their way to her breasts.

Brunette gasped while Doctor's fingers played with her nipples.

'Lucky you... I might have just the right thing...' she answered, breathing heavily. Then she remembered the toy was left in Doctor's room. 'Hold on tight.' she said and stood up with her. Doctor giggled and wrapped her limbs around Yaz.

'I'm still amazed by your strength, my love. You're carrying me around like I was weightless.' Blonde said.

Yaz giggled. 'Because you are. I've carried bags of groceries heavier than you are.'

They have entered Doctor's room, and Doctor jumped off Yaz. She hungrily clinged her lips to her girlfriend's. Yaz smiled to the kiss feeling her partners hand undoing her trousers.

'Straight to the point, eh?' she whispered.

'We don't have enough time for...' Doctor started her answer but Yaz shushed her.

'Now we don't have time? No, ma'am. I've been passive for too long already.' she said. 'Now it's my turn to have some fun with you.'

Doctor smiled playfully. 'You're right. You got me. But... I have a request.'

Yaz smiled too. She gave her a kiss, then transferred her lips to her neck. 'Tell me what's on your mind, Doc.' she took off her shirt and started kissing her collarbones. She grabbed her waist and pushed her towards bed until Doctor's heels hit the framing.

Doctor felt her legs give up under her. Yaz's soft lips and tongue on her body always made her feel weak on her knees. Brunette pushed her back and climbed on top of her.

'Well... Holy smokes...' she cursed as Yaz undone her bra, took it off and kissed her breasts from the base, towards her nipple, without actually getting to them, purposefully leaving them for later. 'I can't think when you do that... Gods...' she gasped as she felt Yaz's mouth around her nipple. She sucked on it and flicked it with her tongue.

'Well I won't do it if you won't tell me what do you want' Yaz said transferring her mouth to her other nipple.

'I'm trying... You're not making this any easier... Fuck...' she cursed again as Yaz gently bit her nipple.

'Who said I'm gonna make this easy for you?' Yaz smiled mischievously and her lips wandered lower, through Doctor's abdomen. 'Better, hurry.' she said undoing her trousers.

Blonde raised her hips to help Yaz get rid of her clothing.

'Remember when you and River sandwiched me?' Doctor took a chance while Yaz was taking her own shirt.

Brunette stopped in the middle of taking off her bra.

'Well... Hard to forget that.' she bit her lip.

'I want that again.' Doctor said shortly, and Yaz raised her eyebrow.

'And how exactly are you expecting me to do that?' she asked a bit amused.

Doctor sat up and helped Yaz with her bra. She then cupped her breasts with her hands, which made Yaz gasp a little. 'Oh I'm sure you'll figure this out.'

Yaz smiled at her lover. She leaned in and clinged her lips to Doctor's. Blonde wrapped her arms around Yaz and she landed on her back again, pinned to the bed by her girlfriend's body. Their bare chests met, making both of them gasp into the kiss.

'I'm so wet, Yaz...' Doctor panted.

'Me too, Doc... What do you want me to do about it?' Yaz asked playfully.

Doctor smiled. 'I want you to fuck me...'

'Well tell me more, Doc...' Brunette teased her, while Doctor's hands were already taking off her trousers and underwear. They looked each other into their eyes.

'I want it deep inside me... Rough... Make me scream, Yaz.' Doctor said attaching the toy between Yaz's legs.

'Where's the other one?' Yaz asked and Doctor pulled the second one out of thin air. Yaz half amazed, half amused took it and put it down beside her.

'Nice trick, David Copperfield. Can you pull out something else out of nowhere?' she asked spreading her legs and sitting between them.

'Glad you asked.' Doctor pulled out a pair of handcuffs.

Yaz stopped, a bit taken aback and looked at her for a second.

'Okay, I wasn't expecting this. But... I can work with that.' she took the cuffs. 'So we're playing cops and robbers, eh?' she rolled her to her stomach and crossed her hands behind her back. 'Want me to read your rights too?' she giggled.

'How often do you want to shag your perps?' Doctor asked teasingly. Her hands were tightly cuffed behind her back.

'Never.' Yaz answered shortly. 'But I'll make an exception for you, my love.' she raised Doctor's bum up, making her stay in doggy like position, but because her hands were tied, she supported her upper body on her shoulders and cheek while she was keeping her butt up, kneeling on the bed in front of her girlfriend. Yaz admired her woman in that position for few seconds. She had a great view on Doctor's soaking wet pussy. Seeing the moisture made her mouth salivate. She fought herself whether she should have a taste or not, but the urge was too strong. She hungrily ate Doctor lower lips, almost instantly entering her with her tongue. She closed her eyes and enjoyed the blissful feeling of her partner's juices on her face and inside her mouth. She wiggled her tongue inside, making Doctor gasp loudly.

'I can't find the right words to describe how much I love pleasing you with my mouth, Doc.' she said taking her tongue out.

'And I love when... Fucking mother of...!' Doctor tried to answer, but Yaz shoved her cock inside her asshole.

'You were saying something?' Yaz asked pushing it even further. They both gasped as Yaz's hips hit Doctor's bum.

'Yaz... Uhmmm... I... Fuck...' Blonde's mind stopped working. The sensation of her cock inside her scrambled her head really bad.

'Are you sure, you want the other one too?' Brunette asked with concern, but she was also burning inside. She pulled the Doctor back by her arms, making her upper body raise, to feel her body against her own. Doctor was panting heavily, she still couldn't say a word, so she just nodded.

Yaz moved her hips few times holding her tightly against her. Doctor closed her eyes and pushed her ass harder towards her partner. Yaz bit her lip and grabbed Doctor's throat.

'Feeling naughty today, are we?' she asked as she felt Doctor's swallowing hard. With her other hand she reached down for the second toy. 'Look down, sweetie. Your wish is about to come true.'

Doctor obediently looked down and saw Yaz's hand holding the second toy. Her forearm was tightly pressed against Doctor's abdomen, holding her in place, while she rubbed her clit with the cock she was holding.

'Do it... I want it... I need it...' Doctor moaned loudly and Yaz obliged. As soon as blonde felt the second cock entering her, she completely lost her mind. Her hands in cuffs felt numb, but she didn't care much about that. In fact she cared even less as soon as Yaz pumped both of her holes at the same time.

Yaz wasn't exactly in the better shape. She felt the other cock inside Doctor too. Her insides felt even tighter. She moved her hand and her hips making both of them insane.

She turned blonde's head to the side to gave her a kiss. Doctor responded eagerly putting her tongue inside Yaz's mouth. Their bodies felt tangled. Both of them moaned to the kiss, gasping for air every now and then. Their position, even though was very pleasurable, was also uncomfortable, and soon enough, Yaz's hand felt sore.

She pulled out the toy and gently helped Doctor lay down on the bed again. She flipped her over without pulling out her rod from her anus. Then she entered her pussy again causing another loud moan. She placed the other end of the toy just above her own pussy, so she could push both of them inside her partner at the same time.

'Yaz... Harder...' Doctor moaned desperately. Yaz smiled to herself. She haven't seen her girlfriend in that state for a while now. She was happy to oblige. She increased the pace of her hips movement. Blonde felt her wrists start to bruise up from the cuffs, but that made her feel even more hot. She continued to help Yaz destroy both of her holes.

'What an eager slut you are, Doc...' Yaz panted.

'Yes! I am! I'm your eager slut Officer Khan!' Doctor almost shouted maintaining an eye contact. These words from Doctor's mouth felt almost unreal, but Yaz never felt so hot before. She entered the state of arousal she didn't think was achieveable. Her movements became rougher and faster. She completely lost control. All that mattered at that moment was making her woman cum the way she wanted.

'Oh fuck... Yaz... I'm gonna come...' Doctor straight up screamed. Her body indeed gave signals of upcoming orgasm. Yaz considered not letting her cum yet, but she couldn't hold it any longer herself. The other cock in the other hole was pressing against her own. The thin wall between them seemed to be gone. She sped up her movements, and Doctor's spine bent into an arch as she still pumped her body with her cocks. Strong spasms ejected the toy from Doctor's pussy, and tried to do the same with Yaz's cock inside her ass, but Yaz grabbed Doctor's hips and continued to destroy her bum. She was close, but not quite there yet.

'Yazz... Fuck...' Doctor tried to tell her to stop, but she didn't listen. She flipped her over again to her stomach. She was out of breath. She felt like she was going to pass out. She spread her asscheeks and watched her cock going in and out. That was too much. With the last long stroke, she came deep inside her. She stopped her movements, panting heavily. They both felt more and more juice coming out of Yaz's cock, which was still deep inside Doctor's asshole. Brunette tried to calm her breath down, but she found that hard to do while still inside her lover, so she slowly pulled her rod out leaving the hole still open.

She uncuffed Doctor and fell on the bed beside her.

They just laid there for a moment, panting, shivering and trying to regain their abilities to speak.

'Wow...' Yaz said eventually and big spooned her girlfriend. 'Yeah... Wow...' Doctor agreed. 'That was... I can't find right words really...' she turned around to smile to her.

'I didn't expect that thing you said.' Yaz smiled too.

Doctor giggled. 'Me neither. I wasn't exactly myself when I said it... Not sure if I can do that again.'

'I won't push you to do that, love.' Yaz gave her a kiss on her forehead and took her hand. 'Oh... We need some makeup to cover these...' she gently moved her thumb over Doctor's wrist bruise.

'I think I have some concealer hidden somewhere...' Doctor answered.

'And you're telling me that now? When my whole family have seen what did your wife do to my neck?' Yaz chuckled.

'Slipped my mind... Sorry.' Doctor shrugged and her girlfriend shook her head in disapproval.

'Come on. We have a dinner to attend to. Do you feel convinced to give David a chance though?' she smiled playfully.

Doctor smiled back. 'Well... For now. But you might have to convince me with your big and hard arguments couple more times later.'

Yaz giggled. 'Oh, you can count on that... But next time you want to do this double thing. I'm gonna call Mels.'

Doctor raised her eyebrow still smiling. 'But then I won't be the only one who'd get double fucked.'

Yaz's mind wandered to the moment she was sandwiched between Doctor and Mels. She remembered two sets on hands and lips on her body and felt a tingle between her legs. 'Oh, I'm counting on that. Especially you're much better now at being on top, Doc.'

Doctor's face became reddish. 'Really?'

Yaz giggled. 'Of course, you absolute muppet. Now let's go. Susan's waiting.'

'Fine... I promise I'll behave, and I'll do my best not to hate David.' Doctor said getting off the bed.

Yaz sighed. 'I guess that's all I can count on. Don't forget your wrists... I wouldn't want them to know that detail of our sex life.'