Olivia woke up early, the sky had just started to change color, fading from slate gray to a delicate pink, she stretched luxuriously. The house was unnervingly quiet, a hush seemed to have fallen on the world. She didn't feel tired or fuzzy-minded, keeping her movements precise and to a minimum she moved without making much noise, it would have felt wrong to disturb the peaceful atmosphere.
Getting out of bed she removed her dress and hung it lovingly in the back of her closet, she stood naked in front of the mirror for a moment, inspecting and admiring her body. She still had faint bruises on her legs from the bedpost incident, but otherwise was only pleased by what she saw. It was probably just her imagination but her hips seemed wider, her breasts even looked a little bigger. She cupped them casually but there really wasn't much to hold onto.
Snorting, her eyes wandered down to her crotch. Unlike Marcella she didn't have a wild enigmatic bush, just a delicate feathery dusting that only seemed to draw more attention to her articulate vulva. It looked oddly provocative to her now, and it started her thinking about everything that had transpired the previous night. She licked her lips and brought a hand up to her mouth, had she actually done all those dirty terrible things to Marcella?
It felt like a strange dream, her mind searched desperately for anything that could prove it had been real and not just a fantasy. She went and found her phone, she looked through her messages and the date chat, but there was nothing new from her mother. Olivia felt a slight chill, she suddenly wanted to put on some clothes. She couldn't find her favorite shorts anywhere, then she remembered that Marcella had taken them along with all her dirty laundry.
There was something else too, in her shorts, she'd almost forgotten, her mother's green thong from their very first night. It was real, it wasn't a figment of her imagination. Olivia was gripped by a frantic impulse to prove it to herself. As quiet as a mouse she slipped stealthily out of her room and headed for the rear courtyard were the washing basin was located. She sighed with relief when she noticed that Marcella hadn't even made it outside, the two baskets were stacked by the back door.
In a matter of moments Olivia had found her shorts and reaching into the right pocket felt her fingers wrap around the springy tangle of her mom's underwear. She pulled out the lingerie and dropped her shorts back into the basket. Heart racing a little from her panicked sprint she put them almost automatically up to her nose and inhaled hotly through the silky bundle. She could only smell the faintest trace of Marcella's familiar scent, but it was enough to elicit a happy moan and start her cunt aching for more.
Moving without thinking she nearly fell over scrambling to untangle the panties and step artlessly into them. She pulled them on and sighed with contentment as they wrapped tightly around all her tingling bits. Her chill was gone for the moment but she was still mostly naked so she returned quietly to her room. Walking over to her dresser she noted that the thong was a little loose, this gave her a brilliant idea. She opened her underwear drawer and took out one of her newer pairs.
They were beige and as plain as the rest but the cut was a little more adult, not anything like a thong but they only covered half her ass on each side and the front had sexy sharp angles that showed most of her belly, but best of all they were nice and tight. She pulled them on over the thong and turned from side to side to inspect the effect. She grinned, none of the green was poking out around the edges, Marcella's thong was totally hidden underneath. She could see the faint outline, just the shape in the front and along the sides but that was it.
She flushed and felt her cunt heat up and then throb dully, there was something super erotic about this. The concealment wasn't just turning her on, it was giving her all kinds of dirty ideas. She turned away from her dresser and slowly started walking towards the door, she was glad she was wearing two pairs of underwear because she could feel the first pair already getting wet enough to show. Moving mostly on impulse she made her way to Marcella's room, the door wasn't even shut.
Her mom was mostly covered by a single sheet, Olivia looked down at her peaceful face as she slept, it was all she needed to find the courage to follow through with her impromptu plan. Walking around to the other side of the bed she lifted the sheet, the light wasn't great since it was still early morning but she could faintly make out that her mother was still wearing her tattered panties, just like she'd instructed. This filled Olivia with warm delight as she slipped into Marcella's bed, pulling the sheet lightly back down on top of them both.
Rocking her body forward she wrapped her right arm around her Mother's waist and used it for leverage to bring them as close together as possible. She felt her hard nipples squishing pleasantly into Marcella's bare back, and she sighed happily at the sensation of her mom's big familiar ass sliding snugly into her lap. Marcella stirred, her body undulating in response to the unexpected pressure. She inhaled sharply, and Olivia could tell she had woken her up from a sound sleep.
Marcella tried to move away at first but Olivia just pulled her more tightly against her chest. She was careful not to let her arm stray too high. "I had a really bad dream." She breathed close to her mother's ear, nuzzling her face into Marcella's neck, touching her collar bone suggestively with her lips, but not kissing it.
"Oh it's you baby. I thought..." She trailed off, her sleepy voice giving her away.
"You thought it was your boyfriend?" Olivia murmured, humor tinging her voice. Marcella blushed and curled up, pulling them slightly apart. Olivia moved her hand down to her mother's hip and rested it casually on top of her underwear. "You really like him that much?" She sighed dejectedly, letting her fingers curl absently against the elastic.
"Yeah, I do." Her mother replied, she sounded a bit defiant or maybe just defensive.
Olivia took a deep breath, exhaling slowly and hotly against Marcella's neck. "I heard you last night, from my room, it kept me up." Her mom kind of quivered then went still, Olivia took this as an opportunity to pinch the hem of the panties Marcella was wearing and twist the elastic sideways so that she could play with it. Her mom was too busy processing what she'd said to notice the subtle motion.