Warning this chapter contains: sex, voyeurism, incest

I don't own the characters, I just let them do nasty things.

Tonks came home to a silent house. Her Auror training was intense and she was gladly enjoying a few days off before starting the new year. Always hungry for her mother's cooking and longing for a warm hug from her dad, she had decided to visit them spontaneously. Assuming they were both at work still, she stepped out of her boots, threw her coat in a corner and went upstairs towards her old bedroom to search for the clothes she had forgotten to move.

She stumbled to a halt when she heard the moans.

Instantly, her cheeks turned scarlet and she wished the ground would swallow her but when she heard their breathless whispers, she carefully walked towards her parent's bedroom. The wooden door was open wide enough for her to get a good look inside. A small gasp escaped her lips at the sight. Her parents, naked, having sex. She gulped hard but she was unable to move. Her gaze caught on them.

Her mother was laying on her back, her brown curls sprawled over her shoulders, her breasts and the pillow. She had her legs firmly slung around her father's waist as he thrust into her. The most beautiful little moans left her lips and she dug her nails into his back, leaving scratch marks wherever she touched him. Her other hand was drawing circles between her legs.

Tonks swallowed hard and wanted to look away. Just then her father flipped them and her mother took control of their movements. Tonks couldn't avert her eyes anymore. Guided by the ache between her thighs, she forgot that these two were her parents.

The brunette decreased the speed of their lovemaking until she only barely moved her pelvis anymore. He groaned in frustration and grabbed her hips. With one hand he reached down and coated his fingers with her wetness before pinching her taut nipple. Her body jerked and she leant down to trail sloppy, wet kisses along his throat. When she straightened again, he sat up, too, and pressed her firmly against his torso. They stayed like that for a moment, just kissing and caressing each other's backs before he urged her to move again by pressing her down on his member. She gently slid up and down his manhood, her wetness glistening on his flesh and had her arms slung around his neck.

He moaned softly as she yet again slowed down. He reached down and circled her sex with his fingers. She shuddered and moaned and with every stroke, her moans became louder. She buried her face against his shoulder and cried out soundly. His body jerked and in a breathless whisper, he called out her name. He removed his hand from her core and ran his thumb along her jaw before he kissed her deeply. In a slow motion, she lifted herself off him. Her hair covered their faces as she pushed him down on the mattress.

Tonks saw the white liquid from their joint orgasm run down her thigh and it made her stomach clench. Their movements had captivated her. Their love had been visible with every thrust, every stroke, every moan. Tonks was about to leave when her mother began to move again.

She firmly massaged his penis, ran the tips of her fingers over the glistening head of his flaccid member. While she did so, he massaged her bum and sucked her dark nipples. Once he was ready again, she lowered herself onto him and gasped when he pressed his hips up against her. Both moaned softly as they hugged each other, stealing soft kisses in between gentle thrusts.

He turned them around and took control over their pleasure. His thrusts were small and evoked the most delicious moans from her. "I love you," she whispered and gently nibbled his shoulder. He stopped his thrusts and simply circled his hips with his cock buried inside her. "I love you," he answered and ran his hand through her locks. He started to move again and increased his speed steadily.

Tonks' watched them as their lovemaking turned into fucking.

The brunette's breasts jiggled as the man slammed into her. A wail of pleasure escaped her lips. "Yes, yes, harder," she yelled when he increased his pace. She grabbed his ass and pushed him down on her. With another hard thrust, he pushed her over the edge. Her legs jerked beneath him and she exhaled soundly. After another few hard thrusts, he pulled out and spilt his lust all over her sex. Breathless, he collapsed onto her and she gently kissed his neck. After a few moments, he rolled off and sprawled out next to his wife.

Tonks saw the witch panting hard, her breasts swayed with each breath. Slowly, the woman let her head fall to the side. To Tonks' horror, she opened her eyes and looked directly at her. Tonks was pulled out of her daydream. The ache between her legs ceased with the realisation that she had just watched her parents fuck. She swallowed hard and both women looked at each other for several painful moments.

"Get out," Andromeda eventually mouthed.

Nymphadora's heart hammered in her chest as she ran down to the kitchen. In a hurry, she searched the cabinets for the firewhiskey she knew her parents possessed. Once she had found it, she didn't bother to take a glass and took a sip straight from the bottle. Moments later, she heard footsteps and wasn't surprised to see her mother step inside.

Without a word, the older witch summoned a tumbler from the cabinet and held it towards her daughter. Tonks poured her a generous amount of the amber liquid and Andromeda took a small sip before exhaling soundly.

She turned and faced her daughter. She wore just a dressing robe, showing off her fabulous cleavage. Her dark locks were dishevelled, her cheeks slightly flush. Nymphadora quickly adverted her eyes as her own cheeks heated up.

Her mother's voice was low and stern when she spoke, "Would you like talk about it or shall we pretend it never happened?"

Tonks took another sip of the whisky and meant her mother's eyes. "Please, don't tell dad!"

Andromeda snorted and said, "Of course not!"

"I wanted to leave, mum, really. I... Dammit, I just couldn't look away! I'm so sorry." Her cheeks and ears heated up even more so she kept her gaze firmly on the floor.

Andromeda looked at her surprised. "For how long did you watch?"

Tonks didn't know if she should tell her the truth. As she contemplated, her mother's gaze on her intensified, after a deep breath and in a small voice she said, "For about fifteen minutes."

"I see," Andromeda whispered in a distant voice. She then downed the rest of her whiskey. For a moment both women stayed silent, then Andromeda lifted her daughter's chin. "You can look at me, you know. Salazar knows I'm not going to punish you. You know what you did was wrong."

Tonks gaped at her before she found her voice. "Yes, mother," she whispered.