My sister’s best friend…. [Mff, oral, drugs, inc]

This is Part 3 of a series regarding Michael and his sister Katie

Katie and I became close in the weeks following the day she caught me masturbating to her in the shower. She sucked me off and since then we both seemed to get off sneaking into each others rooms while our parents were asleep – something we never did as kids – but now my 19 year old sister and I couldn't stop giving each other oral sex. She would sneak into my room late and night and just wrap her legs around my head and then she would go down on me ferociously while they were at work. We also decided to dip into her little box of party tricks, usually just smoking a joint but there were times we did a little more.

Like the time I came home from work and found Katie and her friend Tara getting high in her room. I joined in mostly interested in Tara who I remember from before I moved away. Even 5 years later they were still doing everything together and Tara had gotten very hot. She was shorter than Katie and blond. While Katie was thinner and more toned than Tara, Tara looked good with her added weight. It gave her body a feminine softness that Katie didn't quite possess and was looking particularly appealing to me that afternoon.

But despite Katie and Tara's close friendship not even she knew about our incestual secret. Something about the fact that we were related made it all the more taboo and all the more hot. I could see it in her eyes when I take her, her entire demeanor changes and I can see she's my thirsty slut. I had learned that she even had a guy she would fuck occasionally but that didn't stop our relationship. It crossed all boundaries and was special and unique just to us. Nothing is more intimate than the relationship between a brother and sister.

As Tara, Katie, and I hung out we got along really well and started breaking into Katie's special little box. Before we knew it, it was evening and we started talking about what we wanted to do. The option to just hang out at home was on the table since our parents had gone. Katie laid down on her bed and said, “Michael, come here so I can suck your cock,” almost as if she didn't realize she was speaking the words she was thinking.

Tara looked wide eyed at me and laughed, “What did you just say?” She said ready to poke fun at her. Katie suddenly began to realize what she had said and that it was indeed a drug induced subconscious thought spoken aloud but decided that Tara was trustworthy and relaxed again. She pulled me over with the wave of her finger and I unzipped my pants. Watching Katie suck my cock was always hot but now having Tara in the same room somehow brought me to a new high and I grew hard and thick instantly.

Tara watched in amazement as Katie pulled me into her mouth tugging lightly at the base of my balls. Using her tongue to lap them up she watched Tara's dumbfounded and spellbound reaction. After a couple minutes she slowly pulled me out of her mouth and acted as if she was going to stop.

“Why did you stop?” Tara asked entranced.

“You try,” she said.

“But Katie, he's your brother!” Tara said feigning shock but something in her response told me that this wasn't the first guy they went down on together. Katie didn't need to respond before Tara wrapped her supple lips around my glistening shaft. As friends they really did everything together. Finally Katie joined in and Katie took the balls while letting Tara gag on the head. It wasn't longer before I showered both of them in a hot stream of cum which they then took the time to lick very slowly from each others faces swallowing it all and then making out for quite some time. I laid back and enjoyed the sibling connection that Katie had made with Tara over the years of my absence. Eventually the pair joined me and we lay back relaxed and reminiscing over what had just happened.

“What is it about you Katie?” Tara asked.

“What?” Katie said smirking.

“Like I thought the time that you took both Devin and Tom at the same time was your peak but you're always looking for something to push you higher. And now your brother?”

“I can't help it,” Katie said shrugging her shoulders, “I'm fucked up.”

“Yea you are,” Tara responded, “And it's so fucking hot. What is it about you?”

“I'm always looking for the next high. I always want to push the limits of my boundaries. I have like this insatiable drive to try everything and not let anything hold me back. I teased Michael for weeks before he actually remembered the secret entrance to the bathroom.”

I look at her. She knew. She knew what she was doing to me and she knew what she wanted to happen. Suddenly, I realized that she is more my sister than I had ever imagined.

“Well your brother is hot,” Tara said looking me up and down, "So have you fucked him yet?”

“No,” Katie said, “I'm not going to fuck him.”

“Why not?”

“Because you know I'm not on any birth control right now.”

“Of course I know,” Tara smirked, “That's why I asked…” Katie's eyes suddenly lit up and I had been home long enough to know that this meant she had a devilish plan.

Source: reddit.com/r/sexystories/comments/36alay/my_sisters_best_friend_mff_oral_drugs_inc