A/N If there are any Buffy/Spuffy fans reading, this is a pretty obvious callback. The similarities between Bo/Tamsin and Buffy/Spike are pretty striking, and I just really wanted them to have this scene. I hope you enjoy it! Definitely rated M!

Tamsin pulled away from Bo and Bo was startled by the emotion in her eyes. There was definitely anger there, and lust. But there was also something deeper that she couldn't quite read. Tamsin broke their eye contact and grabbed Bo's arms, leaning over and biting down on her neck, hard. Bo moaned, pulling out of Tamsin's grip and shoved her. The Valkyrie lost her balance and fell over, hitting the floor with a thunk. In a flash, Bo was straddling her, pinning her arms to her sides with her knees and holding her shoulders down. Tamsin struggled to get free to no avail. Bo ran her hand lightly down's Tamsin's cheek, and she snarled at Bo. "Get off of me, Succubus."

Bo cocked her head. "You usually like it when I'm on top."

Summoning her strength, Tamsin wrenched one of her arms free from between Bo's knees and grabbed Bo around the waist. She pulled them both upright into a sitting position. Now, Bo was straddling Tamsin's lap, her legs curled behind the valkyrie. Tamsin shifted her position so that she was squatting, with Bo's legs still wrapped around her waist, and used her free hand to push up off the ground with a grunt. Bo was once again astounded by Tamsin's strength. The valkyrie pulling her other arm free and grabbed Bo's ass. She held Bo there for a moment as they kissed passionately. Bo broke off the kiss and pulled back.

"Didn't you have something you wanted to talk about?"

Tamsin's answer was to slam Bo up against a nearby column and stick her free hand down her pants. As Bo threw her head back and moaned, Tamsin felt the column shift behind them. She glanced down at the base and saw that the foundation was crumbling. She whipped Bo around, throwing her onto the ground and diving on top of her as the column collapsed with a crash. Debris and dust covered them, but Tamsin ignored it and pressed her lips to Bo's, bringer her hand up to her cheek. As Bo deepened the kiss, Tamsin suddenly broke away and pushed her head to the side so that her cheek was pressed against the cold floor. Bo started to protest, but Tamsin began biting her neck roughly, and Bo was silenced, except for small whimpers as she felt Tamsin's teeth and tongue on her neck and jaw. Tamsin picked Bo up again, whirling her around as if she weighed as much as a rag doll. As Bo pressed herself as close to Tamsin as she could manage, Tamsin moved across the floor, trying to find a less dusty corner of the building. Her eyes were closed, her mouth furiously working against Bo's, and she didn't see the second column before she slammed them directly into it. This time, the column crumbled immediately, pitching Tamsin forward. She caught herself before she landed squarely on Bo, and pressed her body against Bo's gently as she shielded her from the concrete falling all around them. Bo seemed to barely notice the debris landing inches from her head, because Tamsin's fingers were tracing slow lines up and down her center. Her face was flushed with rage, but her eyes were burning bright blue. She forced Tamsin's mouth to hers and guided her mouth open with her tongue. As Tamsin explored Bo's mouth with her tongue, Bo inhaled deeply, sucking Tamsin's chi with all her strength. Tamsin felt the tug deep inside of her, and felt a heat spread slowly through her body. She pushed straight out with her hands, forcing her mouth away from Bo's. She looked down at the Succubus beneath her. Her lips were parted and she was panting heavily. Her eyes were bright blue and begging for more.

Just then, a large chunk of the ceiling cracked off and fell towards them. Tamsin rolled them over quickly, and the ceiling missed them by a few feet. It punched through the concrete floor and the crater that formed began to suck them in. Before either of them could react, they had rolled over and over each other and landed with a thud on the level below. Bo groaned, and pushed Tamsin off of her. Tamsin stood up and reached down to pull Bo to a standing position as well. She brushed some debris off of Bo's jacket. "You ok, Succubus?"

Bo took a deep breath and stared Tamsin straight in the eye. Tamsin saw something like pain behind the blue light. "Fuck you, Valkyrie."

Tamsin narrowed her eyes then grabbed Bo around the waist and slammed her into the wall behind them. She grabbed her arms and spun her around, pressing Bo's cheek up against the concrete. With her free hand, she pulled Bo's jacket down over her shoulders and twisted it. Bo cried out as Tamsin tied it in a knot, effectively pinning her arms behind her securely. Bo struggled, but Tamsin kept the jacket securely fastened. She turned Bo back around, pressing her tightly against the wall and lifted her shirt, exposing her stomach and chest. Tamsin knelt in front of Bo and pressed her lips to her stomach, inhaling deeply. Bo stopped struggling and began to moan, pressing her hips forward towards Tamsin. Tamsin quickly began undoing the button on Bo's pants, and she slid them slowly down Bo's legs. Bo was wearing underwear today, and Tamsin left that on. Bo quickly stepped out of the pant legs and spread her legs slightly as Tamsin kissed her mound. She could feel how wet she was even through her underwear, and she smirked, her face still pressed up against Bo. She brought her mouth up a bit higher and grabbed the band of her underwear between her teeth. Reach behind Bo and grabbing the back with her hands, she slowly slid the underwear down, taking the time to caress Bo's ass with her fingers as she went. She dropped the underwear and it fell to Bo's ankles. As Bo started to step out of them, Tamsin reached down and grabbed her ankle, keeping Bo's legs spread wide. She buried her face in Bo's sweet center, using her tongue to draw circles around her clit. She dropped her tongue and pressed it inside of Bo, causing Bo to let out a small scream. She moved her tongue slowly in and out, relishing the taste of Bo in her mouth. She moved upwards, sucking on Bo's clit for a moment before returning her tongue to its place inside of Bo. The Succubus was whimpering, trying to maintain some semblance of composure as the Valkyrie stroked her with her tongue. Tamsin sucked deeply, tasting Bo's sweetness before abruptly standing up. Bo opened her eyes and looked at her in desperation.

"Tamsin!" she moaned. "Please!"

Tamsin cocked her head. "You don't deserve it." She turned and started to walk away, leaving Bo dripping wet and half-naked. She got about ten feet away before Bo's body slammed against hers. She turned around and grasped Bo's waist, kissing her furiously and deeply. Tamsin stumbled, and the force of their momentum propelled them into a crumbling wall across the room. They crashed through it, landing on the floor of another room. The wall collapsed behind them, taking down part of the ceiling with it. They didn't even pause. Tamsin hauled Bo upright and lifted her into the air. Whirling around, she pressed Bo's back up against the nearest wall. Bo's legs were wrapped around her waist and the valkyrie's mind was racing, overcome with desire to be fucking Bo. She lifted Bo up and placed her fingers underneath her, dropping her down so that she had three fingers inside of Bo. Bo screamed in ecstasy as she ground herself onto Tamsin's hand. Tamsin whimpered as she felt Bo pressing herself up against the wall, moving slowly up and down. She leaned in and kissed Bo, tracing her bottom lip with her tongue. She pulled back and stared deep into Bo's bright blue eyes. Bo stared back, not breaking eye contact as she felt herself approaching her climax. Her breaths became ragged as Tamsin curled her fingers each time they entered Bo. Bo pressed her fingers tightly against Tamsin's back, sending waves of pleasure into Tamsin. Tamsin felt her own breathing start to grow shallow as the pleasure spread to her center. She increased the speed of their rhythm, moving her hand in time with Bo's movements, helping her bounce up and down as she started to come. Tamsin felt Bo start to contract against her fingers, and combined with Bo's moan, that was enough for her. She reached her climax, crying out. Tamsin couldn't tear her eyes away from Bo's, and Bo seemed just as captivated. Tamsin felt their breathing sync up as they both began to come down. Tamsin was close enough to Bo that she could felt her heart pounding against her chest, and she felt hers aching as well. As she saw the blue in Bo's eyes begin to fade, she finally broke eye contact, leaning in and kissing Bo softly. Bo seemed to snap out of a trance when Tamsin's lips touched hers. She slid herself up and off of Tamsin's hand, dropping her legs to the ground and pushing Tamsin away roughly. Tamsin was shocked to see her eyes glistening.

"Fuck you, Tamsin." Bo, still half-naked, stalked away to collect her clothes. Tamsin stood there, mouth ajar, wondering what the hell just happened. She heard a crash from the next room. Coming to her senses, she ran after the Succubus.

"Bo! Are you ok?" Tamsin found Bo standing in the next room, a collapsed column at her feet. Her fist was bleeding. "What did you do?"

"I punched the column." Her voice was eerily calm. "But you know what?" Bo asked, taking a step towards Tamsin. "I really wanted to be punching you." She lunged at the valkyrie.

Tamsin stepped to the side, dodging Bo's first blow. She grabbed Bo's arm and pinned her arm behind her back, using her elbow to knock her to the ground. From the ground, Bo grabbed Tamsin's ankle, pulling her down. Tamsin landed with a grunt, and Bo rolled over on top of her. She swung at Tamsin's face, landing a solid blow before Tamsin rolled over, pushing Bo off of her. Tamsin rolled away, pushing herself to a squatting position and reaching up to touch the tender spot Bo had just punched. She turned her head to glare at Bo. "Feeling better?"

"Not yet," Bo replied. She grabbed Tamsin's hair and pulled her upright. Then she kneed her in the stomach, causing her to double over with a low cry. Bo shoved her while she was bent over, and Tamsin fell to the ground. She looked up at Bo.

"I'm not going to fight you, Bo." Tamsin let her eyes soften slightly. She pushed herself upright and stood up, taking a slow step towards the Succubus.

"You think that means I won't fight you?" Bo took another swing at Tamsin, and when Tamsin ducked, dodging the punch, Bo used her other arm to hit her in the stomach. Tamsin grunted and grabbed her stomach. She looked up at Bo.

"I still won't fight you."

Tamsin's refusal to fight back seemed to make Bo angrier. She advanced on Tamsin, shoving her repeatedly. Tamsin continued to back up, but eventually hit a wall. Bo punched the wall on either side of Tamsin, and then shoved her. The wall collapsed behind her and Tamsin fell backwards through it, landing in a pile of rubble. She cried out as she landed hard on a piece of concrete. She rolled open and curled up, grabbing her side.

"Will you FIGHT BACK?" Bo stood above Tamsin, glaring down at her.

Tamsin looked up at Bo. Her eyes were filled with pain. "No, Bo, I won't."

Bo seemed to crumple. She collapsed onto the ground and began sobbing. Tamsin sat up and inched over to where Bo had landed. She put her arms around her and Bo collapsed into them. Tamsin heard a crack and looked up to see parts of the ceiling beginning to fall down on them. Tamsin tried to get Bo to move, but she refused to budge. As the building collapsed around them, the two women clung to each other, Bo sobbing and Tamsin protecting her head.

This sort of ended up in a different place than I meant it to, but I think there's some good character development coming. Let me know what you think! Thank you for all the reads/reviews/favorites!