A little help from a guest

Mark's POV

Mark was about to march Lisa's legs to the stairway when he heard a knock coming from the front door. Curious, he tucked down the tank top on his chest to cover up Lisa's body and adjusted it a little before making his way to the front door. He could feel Lisa's breasts jiggling slightly under him as he walked, her bare nipples pressing against the thin layer of fabric.

As he reached the front door, he twisted the handle to open it, revealing a figure in front of him. He could see a young girl around his age, perhaps slightly older than him. She was wearing a long sleeved white shirt with a contrasting brown colored long pleated skirt that covered most of her body. Her straight, brown hair was combed neatly behind her back where she carried a tiny backpack. Her pretty face showed a nervous expression as she adjusted her thick rimmed glasses. He was so stunned by her beauty that he forgot to greet her.

"H-hello...", the girl mumbled quietly, her soft voice barely reaching Mark's ears. "Ah, hello. And you are?", Mark asked curiously. He had never seen the girl before and he assumed from the girl's attitude that Lisa didn't know her either. Thankfully, his assumption seemed to be correct as the girl replied softly again, "U-uh... M-my name is Tessa... Tessa Roberts. I-I'm John's girlfriend...".

Mark was stunned as he processed what the girl had just said. He couldn't believe that a nerd like John could even get a girlfriend, let alone such a stunning beauty like her. He took some time to let the fact sink in before a devilish idea popped up to his head.

He then responded to the girl with a warm smile, "Oh, hi Tessa. I'm Lisa, John's sister. Are you looking for John?". "Y-yes... U-um... We made a plan to study at his place...", Tessa replied. "John's currently out, though, but he should be back soon. Come on in and make yourself at home.", Mark casually lied with an inviting gesture, pulling Tessa to his trap.

"O-okay... thank you...", Tessa replied, seemingly breathing out a sigh of relief. She stepped in as Mark gestured and took off her pair of white sneakers before following Mark inside into the living room. Mark quickly sat down on the sofa and gestured to Tessa at the empty spot next to him. "Come talk with me, I wanna know more about John's girlfriend", Mark called out to Tessa. She nodded in response and quickly sat down next to Mark after setting her backpack down.

"So? How'd you first meet John?", Mark asked, trying to dig some information about her relationship with John. "O-oh... We met at the library that we both go to often... We both liked to read the same things and so we hung out a lot...", Tessa replied as she recounted the story.

"So, when did you two started dating?", Mark asked again. "Uh... about three months ago... One day he asked me out and I agreed and we've been dating ever since then...", Tessa replied with a nervous blush. "Wow, he's got balls.", Mark replied with a chuckle before asking with a little curiousity, "Which school do you go to, though? I've never seen you at my school before."

At that question, Tessa's expression seemed to darken. "O-oh no... I-I'm homeschooled...", she answered before trying to mask her discomfort as she added, "B-but John and I plan to go to the same college... So we often study together."

"I see...", Mark murmured as silence started to fill the room. Truth be told, he couldn't wait to start touching Tessa. All throughout their conversation, he was eyeing up her body, licking his lips internally as he did so. Despite the girl's best attempt at dressing modestly, Mark could still see right through her. He could tell at first glance that her clothes were hiding a treasure trove under it.

"B-by the way... Can I know where the toilet is?", Tessa's question cut through the silence of the room as Mark replied, "Ah, right". Mark's eyes darted around the room as he tried searching for anything resembling a toilet door but finding none. He racked his brain and blurted out a lie, "Uh.. Our house only have bathrooms inside of our bedrooms, but you can use mine if you want."

"O-okay..", Tessa nodded. "Great, now follow me!", Mark pulled one of Tessa's arm and started leading her upstairs. As he reached the second floor, he came upon a corridor with doors lining up on the wall. Then came the hard part, figuring out which one was Lisa's room.

He had only been in this house once inside of Lisa's body but he didn't bother exploring the place back then. The doors all looked the same so he couldn't even try to guess which one led to where based on the looks alone. But then, a strange feeling washed over him. He started recognizing some of the doors even though he couldn't before.

The door at the end of the corridor leading to John's room. The door next to it leading to the master bedroom. The door to the mother's office. And finally, the door closest to him, which should lead him to his destination. Perhaps this was just his gut feeling, he thought.

Deciding to put his trust in his gut feeling, Mark chose the door closest to him. As he opened the door and revealed the room inside, he smiled as he could see the familiar sights of Lisa's room. It seemed that his gut feeling was right, after all.

"Come on in", Mark pulled Tessa inside and led her to the bathroom as she followed behind him flusteredly. "T-thank you", Tessa bowed slightly as she entered the bathroom, presumably to do her business. Mark grinned widely and locked the bedroom door behind him as he planned his next move...

Tessa's POV

Tessa slowly washed her hands in the sink after finishing her business. She looked at her face in the mirror and took in some deep breaths to calm her nerves. She was so nervous the entire time since she found Lisa at the door.

Tessa had heard about her from some of John's stories and he always made her out to be a pretty mean girl. But he couldn't have been any more wrong. Lisa was actually very accomodating of her. She even allowed Tessa to borrow her bathroom.

She finally finished washing her hands and dried them on a towel before stepping out of the bathroom. As she went back to the bedroom, she could see Lisa sitting on her bed, gesturing for Tessa to sit next to her. "C'mon, let's continue our talk~", she said cheerfully.

Tessa obliged and sat down next to Lisa as they continued talking. Lisa kept asking more about her relationship with John and she answered honestly. Her nerves were slowly calming down as she happily chatted with Lisa. She was happy that she could have another girl she could finally talk to. Her mind was filled with so much joy that she didn't notice Lisa inching closer to her ever so slightly.

Suddenly, she felt Lisa's hand on her thigh. She jumped at the sensation as she yelped, "Eek!". Tessa quickly scurried away, putting some distance between them on the bed.

"You okay there?", Lisa asked with a suggestive smirk, her eyes gazing deep into Tessa's own eyes. "Y-you're a bit close...", Tessa replied flusteredly. "Oh? And what's wrong with that~?", Lisa asked back as she shifted closer, pressing herself against Tessa.

She then put her hands back on Tessa's thigh, slowly caressing it through her long skirt. "Eep!" Tessa let out an involuntary squeal at the ticklish sensation, her entire face turning red. "Oh, you're so adorable~", Lisa chuckled as her hands continued their gentle movements.

One of her hands slipped under Tessa's shirt and travelled up through her belly to her chest. Tessa gasped at the sudden stimulation, her mind unable to cope with the new sensations she was feeling. "P-please... stop this...", Tessa pleaded shakily, tears slowly forming in her eyes.

"Shush...", Lisa said as she put a finger to Tessa's mouth to silence her. She then took off Tessa's glasses and put it gently to the side, wiping off her tears along the way. "Just let me handle everything, okay?", Lisa said as her hands continued touching Tessa.

Tessa didn't reply. Her body was frozen stiff from fear and confusion. She couldn't resist what Lisa was doing to her. She couldn't even understand what was happening. One second they were chatting happily and now Lisa was touching her all over.

Lisa's hand then squeezed on her breast through her plain bra, forcing a low moan out of her mouth. "You're pretty big under here, huh? Why do you hide it~?", Lisa commented suggestively. "U-um.. I.. I..", she tried to reply to no avail. Lisa just snickered and started slipping her hand under Tessa's bra to tease her nipples.

"A-Ah~", Tessa moaned out when she felt Lisa's fingers slowly circling on her nipple. The sensation flooded her brain as her body shuddered. Her pussy started dampening as her body reacted to the pleasure.

Lisa's other hand then moved down. She grabbed the hem of Tessa's long skirt and pulled it up, revealing Tessa's soaked underwear. She then brushed her hand against Tessa's wet panties, forcing out another moan from Tessa.

"N-no! N-not there..!", she shrieked as she tried to stop Lisa from touching her panties. Her thighs closed on instinct but it only pushed Lisa's hands further deeper. A jolt of electric shock ran up her spine as her entire body trembled. Her eyes couldn't hold back her tears anymore as it started pouring out.

Lisa didn't stop and kept on stimulating both Tessa's nipples and pussy. Her pace quickened as she seemed to be getting off on watching Tessa squirm. Her hand just kept rubbing, rubbing, and rubbing without any signs of stopping.

Tessa's cries and pleas quickly filled Lisa's room. She could feel a weird sensation welling up inside her. She tried to push it back by gritting her teeth, but it did nothing. The sensation just kept coming and coming, overwhelming her mind until she finally climaxed...

Mark's POV

Mark could feel Tessa's body shaking violently under his touch. "N-no.. no no no... C-can't hold it b-back.. A-augghh!!", she cried out as her back arched in pleasure. Her shaking eventually subsided as her body fell limp on the bed.

Mark marvelled at the excitement he had just experienced. Exploring Tessa's body with Lisa's hands felt unreal. The sensation of his smooth, stolen skin against Tessa's own was unlike nothing he had ever experienced. Truth be told, he might've almost climaxed if he had just touched himself for a bit there. He could feel the wet panties on his crotch, the love juice almost dripping out of it. He wanted to move on and started pleasuring himself.

However, his stolen vessel said otherwise. As he tried to move his hands, he felt himself struggling to even move a muscle. "H-huh..? What's happening to me..?", he muttered to himself. His body suddenly went limp and fell on the bed next to Tessa. His consciousness started fading as he struggled to keep his eyes open. The last thing he saw was Tessa's **** face before his vision fully blackened...