At the beginning of a weekend with their parents out of town, which was two weeks after twin sisters Lynn and Kay became lovers when Lynn blackmailed her twin with a sex tape of her and boyfriend Brad in the living room and kitchen, they were sunbathing nude after having oiled and made love to each other. It was their daily ritual that kept them sexually satisfied and free of tan lines, and on this day as Lynn used her hand to finger fuck her sister's sweet little cunt while asking the question she had been dying to ask for the longest time.
"Kay, sweetheart, when do you think you'll tell Brad about us so I can have my turn with him? I would like to have a taste from the source rather than just the load of cum you let him deposit in your pussy and ass for me to taste. And maybe if he's okay with it we can have a nice group outing."
Kay was surprised at this question and answered, "That's sounds interesting. Let me think about how to ask him the next time I see him. I don't want to say outright that it's you who wants him, because I don't want to scare him away."
Lynn smiled and already had an idea that she needed to give more thought, but in the meantime she leaned over and gave Kay a deep kiss before rolling over and straddling her in a 69 as they ate each other to a shattering orgasm. Kay then pushed her off because she had to get ready for her date with Brad, which left Lynn to her own devices and imagination, which included dreaming of being fucked by Brad and Kay in a threesome that brought her to an orgasm which led to falling asleep in the hot sun.
An hour later, Brad knocked at the door but got no answer so decided to open the door and inside saw a nude body on the deck and believed it to by Kay, and so decided to surprise her for a nice quickie before going to dinner. He undressed to release his hard cock and walked outside to stand over her and startle her but said, "Don't stop on my account, baby. I'm just here to watch."
Lynn stayed still for a moment, conflicted over whether or not to tell him that she wasn't Kay, but as she watched him stroking his large cock she could resist and resumed finger fucking her pussy while licking her lips and moaning, "Yes Brad, fuck my pussy with that big cock of yours! Please, lover, cum inside my pussy as I cum too!" Her hand went faster and faster while he stroked his cock in time as they both got closer and closer and finally went over the edge as her body arched off the lounger while he aimed towards her and covered her sweating, oiled, and exerted body with his cum. And she noticed that he was still hard and was willing to let him fuck her because she was so turned on that when she removed her hand she saw his face turn from erotic to shocked.
"Oh, shit! Lynn? Why the hell didn't you tell me it was you and not Kay? She can't find out about this so don't say anything!" And with that he ran inside and Lynn just laid there in post-orgasmic bliss as she scooped up his cum and licked it from her, wondering what gave her away. And looking down she saw her completely shaved pussy that she knew was the reason, and just started laughing as she laid back and started masturbating again remembering how magnificent Brad's cock was up close and how she was going to tell Lynn about her sudden realization about Brad, and what it was going to do to their relationship.
Brad slammed the door shut and threw on his clothes, hoping that Kay didn't notice anything tonight and that Lynn didn't say anything. Damn she was sexy, he thought, as he remembered every inch of her body as if it were Kay, which it somewhat was since they were twins. And if she hadn't been shaved, he would've fucked Lynn and probably gotten caught, so he was lucky that she was and hopefully Kay wouldn't find out. Moments later, he was brought out of his memory by the sound of Kay coming downstairs, and looked up to see her standing in front of him looking sexy as hell in a strapless black cocktail dress, black stockings, and black fuck me heels which was what he wanted to do to her right over the table. But he knew she wouldn't with Lynn right outside, so he went up to her and gave her a long, deep kiss and escorted her out to his car.
Kay knew the dress would get him and after seeing how sexy he looked standing there she was just about to say forget about dinner and they should just stay in for the night, but she didn't want Lynn to get any ideas and spoil everything. Plus, Kay wanted her relationship with Brad to be about more than just sex, so they went out, but as the night went on she noticed something odd about him. The amorousness he showed in the kitchen started waning all night as she felt like he was someone else who was less interested in her and wouldn't make much eye or physical contact, unlike other times when he would almost be possessive and pay compliments all the time. When he brought her home, he didn't want to sleep with her for the first time ever, saying he was tired and went home with barely more than a kiss on the cheek.
Inside, Kay found Lynn in a much more amorous mood, but because of what happened with Brad didn't want sex either. In her room Kay just dropped her clothes and lay in bed looking up at the ceiling and wondering what happened tonight. Then a light went on in her head and she stormed into Lynn's room and solo session with a large dildo.
"What the hell did you do to my boyfriend!?" she yelled at Lynn.
"What do you mean? I didn't do anything to him," Lynn responded, backing into a corner of her bed out of range of her sister's anger, fearing that Brad told her.
"He wasn't himself tonight, as if he was ashamed of something. I couldn't figure it out until I just remembered what I had heard before I came downstairs to find him looking all flustered in the kitchen. I heard you moaning and yelling his name, and then a separate lower moan that I didn't remember until now. Did you fuck him?"