Keeping Him Out of Trouble

[WP] "Mom said to keep you out of trouble while we're on vacation, so I'm going to tell all the girls you're taken. If you really need to get off that badly, then you can use me, I guess..." Even though they were both adults, his hot step sister still ended up babysitting him...

From u/gahidus

“Hi, I’m Trouble,” the girl told Sarah’s step-brother. Okay, maybe that’s not what she said, but that’s what she meant. Mason had a bad habit of derailing his life for any girl that wanted, which would be bad enough if Mason had good taste in women. Alas, he did not. Mason seemed to always fall for the worst women.

This was the exact thing their mom was worried about letting the two of them take the cross country road trip. That Mason would find someone and drop his entire life and move halfway across the country. She had begged Sarah to watch over her brother, make sure he didn’t do anything stupid for any of the girls along the way.

Only a week in and Sarah was already exhausted with trying to chase after her brother. “Hi, I’m Mason’s girlfriend,” she introduced herself, as she approached Mason and ‘Trouble.’ The other girl’s eyes went wide before apologizing and leaving them.

“What the hell!” Mason immediately started in.

“It was just a joke,” Sarah defended herself, hiding the true intention behind it all.

Mason sighed, “Well it wasn’t funny. You’ve been cock-blocking me this whole vacay.” He glanced around the room, ‘Trouble’ had already spread the word that he was taken. Disgusted looks were being shot his way. “Maybe we should just get out of here,” he suggested.

They weren’t far from their hotel room, so they walked from there. “I just thought this was going to be a sibling trip,” Sarah said, trying to dissolve the anger and frustration she could sense in Mason’s demeanor.

“It is, we’ve done so much together. It would just also be nice to get laid, you know?”

“I mean we’ve done all the boring driving together, but every time we go out you chase some girl.”

He laughed, the tension in his shoulders relaxed, “I guess. It’s just been a while, I haven’t been with anyone since Brandy left.”

Sarah rolled her eyes. 2 weeks. He was complaining about a 2 week dry spell? Ha, Sarah was going on… well that doesn’t matter, but needless to say 2 weeks was nothing.

They made their way into the hotel room. Sarah relaxed on her bed, thinking another night of Operation Cock-Block was over. Her brother was safe and sound in the hotel room. Until Mason opened his big dumb mouth once again. “Look, I know sibling trip and all that, but,” Sarah’s blood went cold at each word, “I’m just going to go back out. One night of fun and then I swear here on out the rest of the trip is just you and me.”

She sat straight up in the bed. “No.”

“No? What do you mean? You’re not the boss of me, and it’s not like you weren’t going to pass out half way through a movie anyways.”

Sarah scrambled for any excuse to not let him go, but none of them felt good enough to persuade Mason from leaving. “Ugh, look Mom asked me to watch out for you. Make sure you don’t throw away everything for some girl. Especially one who lives so far away.”

“Wow, that’s awful. It’s just a one-night stand, I’m a big boy, I think I can handle myself.”

“Whatever you big idiot. We all know you can’t. You dropped out of school for Rachel. Gave up your crazy great apartment because it was too far from Helen’s work. Or oh what about Gigi? Remember how you spent that huge sum on that trip, she dumped you at the airport and took the trip by herself.”

“Okay, okay, I get it. But it’s not like every girl I sleep with goes that far.”

“But too many of them do. Mom and I just don’t want you to move away and ruin your life. You’ve got a good job, despite Brandy’s best efforts. Look if your dry spell is really hurting you that badly, maybe I just give you a handjob to hold you over, and then once we’re back in the city you can find a girl to ruin your life closer to home.”

He looked shocked at Sarah’s offer. “A handjob? You’re teasing me aren’t you?”

“I mean, I’d rather not, but if that’s what it takes to keep you away from your choice of women and lets me keep my promise to Mom then why not? We’re not actually related, plus it’s just a handie anyways.”

“No, you know what, I’m calling your bluff,” Mason said, tugging at his belt. She wasn’t bluffing, but was kind of hoping that he wouldn’t take her up on it. That is until, his cock sprang free from its denim prison. She was mesmerized by its size, the weight of it as it hung straight out from his body. “Well, what is it going to be?” Mason smiled, knowing that he’d won, Sarah would give up on her foolish quest and he would be free to leave.

But to his surprise, Sarah crossed the room. The touch of her hand to his cock sent a shiver up his spine. She was determined to keep her word, or maybe it was her own dry spell speaking. She spit into her other hand, staring into her brother’s eyes. Mason groaned in pleasure, as Sarah lowered herself to the ground.

Her hands worked his shaft with a steady beat, smearing it with her own saliva. It glistened with the shine of spit. She had only offered a handjob, but that was before she saw what Mason was packing. With only the quietest of doubts, she leaned forward rolling her tongue around the head of his member. “Oh, fuck Sarah.”

She played with herself, while pumping and bobbing on her brother’s cock. His hand rested on the back of her head, not pushing her further, just providing that physical connection. She looked up, her lips wrapped around his rod, he was lost for words, hell by the look on his face she might’ve sucked every thought out of his head.

Her body ached for more, her pussy demanded its own turn. She struggled with the thought, could she really push it further. It had already quickly evolved from a handjob to a blowjob, was it really fair to push further? Yes, yes it was. “Fuck me,” Sarah huffed as Mason’s cock slipped from her mouth, her hot and heavy breath gusting against his straining hardness.

It was all the more encouragement Mason needed. He reached down, grabbing his sister under her arms. With a single fluid motion, he lifted her from the ground tossing the both of them to one of the beds. And the siblings shared their first kiss together. Mason leaned up, pulling his shirt off. Sarah followed his lead, letting their shirts fall to the hotel room floor.

“Fuck, I love your tits,” Mason said, diving to her chest. Sarah blushed at the compliment, she’d always been a little self conscious about their size. She’d even pierced them after hearing a rumor that it would cause them to swell a size or two, turned out it was a lie. But she kept the silver barbels anyways, they made her like her bust a little more than before, which is all she was really after anyways.

Her fingers ran through Mason’s hair, as his tongue flicked over her hard nipples, sucking upon them each in turn. “Oh, Mason. Fuck me, already,” she demanded between her heavy breaths.

Mason was more than willing to comply to his sister’s command. He quickly removed her pants, her underwear didn’t last much longer. They kissed once again, as Sarah’s hands guided his cock to her entrance. She gasped as he plunged deep into her, filling her in a flash.

Their bodies melded together, her legs wrapped around him, his hand lost in her blonde locks, their tongues finding new homes in the other’s mouth, and most importantly her sex enveloped his in a carnal embrace. Each of Mason’s thrusts, sent another wave of pleasure through Sarah’s body.

“I’m about to cum,” Mason warned.

“I’m close, just a little more,” Sarah pleaded. Her brother strained, holding out as long as he could, not wanting to deny her the same release. And with a final surge of pleasure, both of their bodies gave in. He shot his seed deep inside of his sister, as her body squeezed and milked every drop. They held each other tight as her body quivered under his tensing muscles.

“That was,” Mason fell to Sarah’s side, “just wow, I can’t believe,” he shot up in terror, “shit are you on birth control.” His eyes were wide in terror.

“IUD, we’re fine,” Sarah reassured him, still catching her breath. Mason relaxed, falling back to her side.

Sarah raised her hand into their shared vision, her pinkie outstretched from her fist, “Don’t tell Mom.”

“No worries there,” he laughed, hooking his pinkie with hers. He propped himself up on his elbow, looking down over his sister’s nude form. He toyed with the jewelery pierced through her nipple, brushing his thumb over the sensitive nub. “So was that a one time thing? Or…”

Her heart skipped a beat at the thought. And as she felt Mason’s cock hardening against her bare thigh, she knew that it definitely wasn’t a one time thing.