Back inside Katie’s dorm room

The trio made their way back to Katie’s dorm. Katie came stumbling in as she unlocked the door with her room keys.

“I’ve got wine!” she yelled out, grabbing out a bottle of moscato and some wine glasses.

Not the biggest fan of wine, Mark still didn’t care, he would have swallowed bleach if it meant a chance at sleeping with these two sisters at once.

They sat on the too beds, Katie and Winter on the opposite one to Mark. Chatting for a bit, Mark couldn’t help himself constantly peeking at Katie’s breasts and the hint of black lacy panties from underneath that white skirt.

Eventually Katie got up again to pour herself another wine.

While she did so, Winter gave him a look from the opposing bed. As if she was signalling something, preparing to turn this little afterparty sexual. He shifted his gaze back and forth from her to her sister’s behind as she poured a new glass.

“So uhh, what are you guys like a couple now? You’re always together,” said Katie coming back with a new glass of moscato.

“Oh we’re not exclusive or anything, just getting the real college experience,” Winter responded. Mark nodded along with her, he was so happy that she felt the same way. As much as he really wondered if Winter was someone he would settle down with, Mark still really enjoyed getting with other girls at this stage. “Also he just loves to hang around me because I’ve got the best boobs he’s ever seen,” Winter then added.

It took Mark by surprise a bit but it turned out Winter had a plan and she knew exactly where this was going.

“The best huh?” Katie then said, turning to face her younger sister on the bed. “May I remind you of these,” she said, gesturing to her own breasts.

Winter replied with a meh look which got on Katie’s nerves. “You do know that they’ve gotten me out of two speeding fines and has helped me get anything from any male ever,” Katie continued.

“Oh don’t get me wrong, they’re impressive but little sis always does it better,” Winter replied.

“Alright Mark, you tell us, who has the better tits?” Katie said, it was exactly where where Winter wanted this to go.

They both now sat in front of him, sitting on the opposing bed, Katie desperately waiting for his response.

“Hang on, he needs more to judge this off, he hasn’t even seen yours fully revealed,” said Winter, immediately throwing away her top. Underneath, it was revealed that she had no bra on. Her big beautiful breasts now with plenty of air.

With a determination to beat her younger sister, Katie followed suite. Standing up, she tried to pull off her lacy tight top as best as she could. Once off, she stood in front of him wearing a lacy black bra and that short white skirt.

“Try not to cum in your pants straight away, yeah?” she said as she moved her hand to her back to unclip the bra.

She wasn’t joking, they were sensational. If Winter hadn’t have gotten him off earlier then there’s a very good chance that he would blow his load immediately.

The bra came off and was chucked over to the other side of the room. Her massive breasts wobbled and bounced as they came out. They looked almost identical to her younger sister’s. Very big and round, her nipples a similar shade of colour as Winter’s, they looked just as juicy.

Mark licked his lips unintentionally as he watched Katie slide her hands over the side of her massive breasts. Like two big bouncy melons that would be as soft as pillows.

She sat back down on the bed next to her sister, making sure she did it quickly so her breasts would bounce a lot. Mark now faced the two brunette topless sisters. He wondered what he had done in a former life to deserve this.

“So? Who’s are better then?” Katie said, giving another shake of their breasts.

“Ohh umm uhhh I dunno, I uhh.”

Winter suddenly leaned all the way forward, getting out of her spot on the bed. She shoved her naked breasts to his face, rubbing them across it.

“He loves to suck on mine, they’re just so tasty aren’t they Mark?” she said, trying to **** one of her nipples inside his mouth.

Mark mumbled something back as he tasted the already hard nipple. He sucked at it for a bit longer before Winter was suddenly pushed aside by her sister.

“Unfair, he’s played with yours enough already,” she said. Katie was now standing right in front of him, her heavy breasts just millimetres away from his face. “Well, you going to just stare or are you going to give them a squeeze?”

Instantly, Mark grabbed the breasts, squeezing them roughly. They felt so similar to Winter’s, so soft and plush, he squeezed her massive cleavage before pinching her nipples.

“Taste them,” she whispered to him.

Lord he was in heaven, he took her right hard light brown nipple into his mouth. Mark didn’t stop there, he tried fitting in as much of her breast as he could into his mouth.

He was salivating at the mouth, sucking on her tit, Mark was making an absolute mess. Basically slobbering all over her boobs.

As much as she knew he was enjoying it, Katie pulled away in a sudden movement. Making him even more hornier, wanting her to bring her tits back to him again.

“Okay, you ready to pick now?” she said, standing there topless.

He looked at Winter and back at Katie, “Well I dunno, yours are really nice but Winter has let me tit fuck her before and that was awesome.”

It was the perfect way to fire up the drunk horny older sister even more. She didn’t even say a word, just dropped to her knees and started pulling down Mark’s shorts and underwear in one go. As they fell to the ground, his hard-on bounced up, pointing straight up to the sky.

Katie gripped his cock instantly as it was freed. A few quick long strokes before she placed it in between her two breasts.

They engulfed it, he could barely see any of his hard dick besides the head of it poking out between her tits. Katie kept eye contact with Mark as she spat downwards on his dick that rested in between her chest.

The spit helped lube things up and made it easier for his dick to slide up and down within it.

“You going to cum or can you hold your own with me?” she teased as she let her tits bounce up and down his shaft.

“I can last,” he said, looking back at Winter who was playing with her own breasts, **** to join in too.

Katie picked up the speed, never taking her eyes off him as her gigantic tits milked his cock. His dick continue to slide up and down. Those beautiful breasts just swallowed him up. As a boob man, he couldn’t remember having much better than this.

Knowing her just as busty little sister was keen on joining in too, Mark was sure he was in heaven or some crazy sexy dream.

After a couple minutes of absolute glory, Winter kneeled down next to her big sis, anxious to join in. She had now pressed her own breasts against Katie’s, rubbing their flesh together.

“My turn sissy,” said Winter, pulling Mark’s dick away and lowered her own tits onto his hungry cock. A moment of air before his cock was once again feeling the warm, soft, plump flesh cover his shaft again.

As Winter took her turn titfucking him, Katie remained next to her, letting her own breasts brush against her sister’s and Mark’s right thigh.

“Give this a try, in between them both,” Katie then said to her sister.

They had reorganised themselves into a position that had Mark’s dick directly in the center of the four massive melons. Both girls with one breast on either side, attempting to wank his dick. The girls giggled as they pulled their boobs upwards, creating a thrusting motion around his cock.

Things had really heated up now.