Second-hand Arousal

As the door closed behind them, 'Cathy' found herself staring at the other door in the room. Frank said that the rooms they rented had adjoining rooms which means through that door was where her brother was possibly losing his virginity. The thought of it happening was so fucking hot but on the other hand her brother was so timid and unsure of himself. She had to be there all throughout the dinner to egg him on and encourage him. Would he be able to keep it up without her? Frank meanwhile had removed his suit jacket and begun unbuttoning his dress shirt, noticing where her eyes were fixed. "I wouldn't worry about your brother too much. Beth knows what she's doing. I was even worse than him when we met and you see the crazy, swinging pervert she has turned me into."

Cathy slowly turned away from the door between them and her brother, "You think?"

"Remember that I was the one that responded to you on that chat board because I thought a hookup with twin siblings would be kinky and was probably a once in a lifetime opportunity? I'm sure you would agree that jumping onto your thread is a rather bold thing to do right? Kind of shameless wouldn't you say? Especially when it involves another man having sex with my wife. Did I come across as hesitant or shy at all to you tonight?" Cathy shook her head no and Frank smiled as he pulled his shirt off to reveal his chest. He didn't have a whole lot of muscle but didn't seem to have any fat either. He probably didn't spend much time working out but also took care of his body. He was definitely on the skinnier side but not terribly so. "Well, my wife is by far the more sexually aggressive one in our relationship. I don't know if they're completely naked yet, depends on her mood but I would frankly be surprised if his dick wasn't already firmly enclosed in some part of her body. Especially with the way Tom was staring and checking her out during our dinner. Being ogled tends to make Beth particularly randy."

As he said that a sudden surge of arousal surged up within Cathy and she suddenly went from worrying about her brother to just being annoyed she and Frank weren't naked yet. With an incredible speed, Cathy pulled her dress off with her bra and panties pulled off and tossed to the side without thought. She was feeling hot and ready for Frank when she suddenly had an unfortunate realization. "Fuck, I got so excited about planning this out and getting my brother here that I forgot to pick up some condoms!" She failed to notice Frank smile and begin reaching into his pants pocket so instead she just shrugged her shoulders and looked Frank in the eyes, "I guess you'll have to do me in the butt."

Frank raised his eyebrows and took his hand out of his pocket, "Are you sure about that? You don't come across as the kind of girl who has done much of that sort of thing."

"No, I haven't done much of that before. I had sex with one boyfriend in high school twice. It was clumsy and awkward and we drifted apart when we went different ways after college. That's my entire sex life aside from a little rubbing myself off once in a while." She glanced real quick at the door to the adjoining room,, guessing at whatever was going on in the other room and getting turned on by all the possibilities. "But I need something hard stuffed inside me. Get your pants off so I can start getting it ready." She was already on her knees in front of Frank by the time that she had finished speaking.

Frank simply responded by beginning to unfasten his belt, "Well, I wouldn't want to be rude by saying no would I?" Cathy planned to dive down on it and go to work the moment he got his pants and underwear down but was slowed down for a moment as she realized that it was a bit longer than she expected. But it certainly wasn't going to stop her as she grabbed hold with both hands and placed her mouth on the head.

It didn't take very long before Cathy began wishing she had brought some sort of vibrator with her. Sucking and licking Frank's dick was great. He was handsome and blowing him was actually turning her on almost as much as the sibling-fucking going on next door, it just wasn't enough. It would have been so much easier if she had brought the condoms though. Or a bottle of lube at least to make the butt sex easier. In her head she began thinking about continuing to get her brother laid and coming up with a list of supplied they would both need. As she sucked his dick. she moved one hand from his prick down into her own pussy which was now dripping wet with her own natural lubricant. Which gave Cathy an idea. She pushed a couple of fingers inside herself and begin to stir up her honey pot until her fingers were covered in her own nectar. Then she switched hands and let her own pussy fluids aid in the lubrication process. Which would allow Frank to put this monster into her ass even sooner. And she wanted something stuffed inside her somewhere as quickly as possible.

Frank was in no hurry to push the issue as Cathy continued to stroke and lick his shaft but with her lack of experience he was worried that she might not know when to slow down and accidently push him past his breaking point too soon if she kept going on like this. It was unskilled but she was certainly enthusiastic and aggressive with her ministrations and that turned him on a little too much. Not wanting to spoil the girl's night he decided to butt in and put a hand on one of her cheeks, taking her attention off the cock and onto him for a second. "If you keep going like that, you might make me cum before I get the chance to put it in you. While I'm perfectly happy to accept a blowjob and orgasm from a girl as pretty as you, I get the feeling that's not what you want."

Cathy's response was to immediately stop and jump up on the bed while standing on all fours. "I guess that's going to have to be good enough on the lube. Please, I need it in me."

With Cathy in position, Frank walked up behind her and placed the head of his dick against her hole, "Okay, now for a first time this is always tight and it usually hurts. If you want me to stop, just say so okay?" Cathy just nodded her head and gripped the blankets below her tightly in preparation. But as Frank slowly pushed into her she realized two things, he was right that it did hurt. She also realized that the way that the beds were set up, on the other side of the wall that she was facing, her brother was very likely losing his cherry at that very moment. That realization removed any doubt and only made her want it more as she became hornier and hornier. When Frank had his dick about half way he stopped for a moment and pulled out a little bit. He didn't think she could handle him bottoming out and certainly not yet.

Frank was taking it slow, trying to let Cathy get used to the feeling. He did notice that every once in a while her eyes would drift and focus for a split second on the wall between them and assumed she might still be preoccupied with the activities in the adjoining room. Thinking of encouraging Cathy, he leaned down a little bit and whispered a question into her ear, "You guys used fake names right?"

Cathy had her eyes closed for a moment as Frank pushed a little bit deeper and she groaned, "Yeah, the website said to do that for safety reasons. To cutback on stalkers and stuff."

Since Frank was already bent over he reached around Cathy's body with one hand and lightly pinched a nipple, getting an appreciative moan from the girl. "We did that as well. Think about what that means for your brother. He's such a stud, he's fucking some random whore and he doesn't even know her real name. Your brother's so irresistible that women can't be bothered to learn his name before going down on him."

Frank realized saying that may have been a mistake as when he said that, Cathy seemed to lose her self control and pushed her ass backwards until she had taken every inch of him. Rather than him slowly moving in and out to make it easy on the girl, she had begun trying to **** the issue and it was apparent the 'slow and steady' approach was now dead and buried. She was now too turned on to care about the pain. Cathy began moving her hips back and forth a lot quicker than he thought she'd be okay with, moaning loudly about how hot that was. As she road Frank's dick she began babbling about fucking that dirty nameless slut into oblivion until neither of them know her name. With the rate she was going it didn't take very long until Frank began to climax and fire a creampie into the girl's bowels. When she felt his hot fluid beginning to enter her, Cathy abandoned using her arms to hold herself up and moved both hands to her pussy. With ass in the air and face down in the bed, she brutally attacked her pussy with both hands. As a result it didn't take long before she was shouting in an orgasm of her own while continuing to babble about her brother's sexual adventure, though barely more than a whisper at this point. "Give the slut amnesia, make her forget her own name..."

The bed sank down next to her as Frank lied down next to Cathy grinning, "So was it good for you too?"

It took her a moment to come to her senses but once she did all she did was giggle. "Wow, I think I may have been the one that cummed their brain out." She scooted her body a bit until she was able to lie on her side with one leg wrapped around one of Frank's legs, her tits pressing into his side. She reached over to grab his chin, pulling it so his mouth was facing her and then moving in for a kiss. "We got to see tonight at least some of the reasons you love your wife, now I can see another reason she loves you." Cathy reached down to place a couple of fingers on his penis. "It might seem weird too worry about something like this but I am still a little new to butt stuff and it seems a little gross to try again right away. We still have enough time go again I think, if I clean it off first, do you want to go again before heading downstairs? I'm not sure if I want to do the butt again but maybe we could try a 69. Sucking you was kind of fun and I've never had someone eat my pussy."

Frank just smiled as she said that. "Tell you what, in the right front pocket of my pants I have some wet wipes that I keep on hand when me and Beth have intimate encounters. And that pocket has some other stuff you might find interesting. My legs are still a little shaky, would you mind grabbing them?"

Cathy gave him another kiss and agreed. Getting up she looked around trying to find his clothes. As she did that Cathy realized finding her panties and bra might be difficult considering how carelessly she tossed them off. She found Frank's clothes easily enough and when she emptied out the pockets she saw the wipes and begin laughing. "Oh, you little son of a bitch." She tossed the wipes on the bed and then held up three individually wrapped condoms. She lied back down next to him, smiling and beginning to fish one of the wipes out of the packaging.

"Hey, you seemed so insistent on having your butt stuffed I couldn't resist. But I figured you might still want to have me inside your vagina. It would be rude for me to not offer eventually right? So what'll it be? 69 or should we let your pussy know how good your asshole just felt?"

Cathy's response was too look from Frank to the clock on the bedside table and back to Frank. "You know if we're quick about it, we probably have time for both."

Frank just laughed, "That sounds like the kind of nympho answer my wife would've given. Alright sweetie, let's see if we can beat the clock."