Eric lay on his bed playing it back over in his head. She had looked perfect, his dick in her mouth and both her ass and pussy exposed to the mirror behind her. It was almost too good to be true, but he knew it wasn't, he was still holding onto the small pair of panties he had slipped down around her ankles before she left. It was then he heard the door closing downstairs. Glancing at his watch he registered the time and knew it would be his sister getting home from practice. Rolling off the mattress he walked over to the door and poked his head out so they'd see each other as she made her way up.
When she got to the top and noticed him she gave a smirk and slowed down from the pace she had been moving into more of a sultry, teasing saunter. Jane was average size, with nice curves and perky tits and ass. Her red curls and green eyes were stunning, and she usually used them to great effect. Not for the first time he halfheartedly wished he had a less attractive stepsister. Their parents had married each other last year and they had spent a decent amount of their time flirting with each other. Nothing much came of it, except one weekend when their parents had been gone and they'd had a little too much of their wine. The problem was that Jane was just as interested in the fairer sex as he was, and only truly interested in men as far as she could string them along.
Her face staring up at him was what drug him back into reality. "Huh?", he managed to get out. She was standing there, hands on hip and a look that spoke of smugness. "I said, what's going on you dork! I'm guessing from the way you're standing here daydreaming that you're wishing some poor girl would fuck you. That's what your hand and your room is for."
He smiled as he replied "As it just so happens I don't have to hope for it at all little sis." She hated when she called her that, she was only younger than him by a month, and sure enough her nose wrinkled itself as she grimaced. The look was quickly replaced by confusion however. "What do you mean?" she demanded "Please don't try to tell me you managed to convince somebody you were worth fucking." He slowly held up the pair of panties he had been holding and dangled them in front of her face.
She was all too quick to grab them away from him and inspect them closely. "That doesn't prove anything." she said, but not sounding certain. "You could have stolen these or even bought them." "Test them then." Now it was getting good. Not only was Jane attracted to girls, she was easily as perverted as he was. There was really only one way to tell if they were used panties. She stuck her tongue out at him, but then held the panties back up to her face and began a deep breath, taking in their scent. Sure enough she turned to look at him with a new appreciative gaze. Now it was going to get good.
Jane was about as kinky as he was although with a different set of turn-ons. He knew she would want in on this. "I have a proposition for you." he began...
**************
When Stephanie showed up the next afternoon she seemed a lot less anxious, she wasn't bouncing around and looking every which way but standing still and staring straight up into his eyes. She was wearing tight black leggings and a pink tank top that clearly showed off her cleavage. Her hair was pulled up in a loose ponytail. He opened the door and told her to come on in. She pushed past him and started straight up the stairs. "Come on," she said, "I want to get this over with."
When Eric caught up to her she had already made it to his room and was waiting with clear impatience, arms crossed and tapping one foot. Jane was sitting at his desk, and he had honestly expected a worse reaction. He walked in casually like everything was normal and plopped down on his bed, remaining silent, waiting for her to be the one to break.
Break she did, nearly screaming "Well someone tell me what's going on!" after several tense minutes. Eric and Jane glanced at each other and then he turned his gaze on Stephanie, who was growing more agitated. "This is my sister Jane, Jane this is Stephanie. Jane's going to watch you suck me off and when you're done you're going to eat her out." He watched her face as it sank in that something bigger really was going on. "Oh no" she said "Hell no. That was not what I agreed to. I'm not a lesbian, and don't want to be one just so you can get your dirty kicks off. Who even knows what you did with those panties you stole you pervert!" At this point she turned to Jane. "I don't know what he's got on you but with two of us we can get out of it. We can say he harassed us and pressured us into doing this and he'll be in jail like the sicko he is." She finished that with a glare at Eric.
While staring at him she didn't notice the smile that started to bloom on Jane's face and whipped around, startled when Jane spoke. "I don't think you get it Steph, I'm not trapped like you, in fact I want to be here. I don't see why my brother gets to have all the fun. I don't care whether or not you do like eating pussy, I expect to be pleased just as much as he is, or else I won't honor the little keeping-it-secret arrangement you already have." Stephanie's face had lost the indignant look it had at the beginning and now was as resigned as could be. "I think you understand now," Jane said, still smiling. "So strip down and get to work on my brother, I don't want to have to wait too long."
