The fun starts

After bragging about how she's going on a date while we're all going to be stuck at home tonight, my sister finally leaves. Maria and I were sitting in the living room watching TV, waiting for to leave, and the moment the door closed, we sprung into action.

"Fucking finally." Maria says. John, I love your sister, but I wanted her to shut up and leave so fucking bad." she exclaims, as she takes her top off. I watch her undo her bra and through it across the room. She pushes me down so I'm laying on the couch and crawls on top of me, and she begins to kiss me deeply.

"Shouldn't we call in the others?" I ask her, grabbing her ass.

"In a bit. I want to be the one that gets it started though." she says, kissing me again.

She slides her hands down my torso, and stops at my pants. She unzips them and quickly yanks them off of me. My cock is already fully standing at attention.

"God..." she moans. "I still can't get over how big it is." she says, as she slides it into her mouth. She's sucking me off a lot more enthusiastically than last time, and she's not breaking eye contact with me. I run my hand through her hair and grab a handful, and begin to pull it. She moans in response to this, and starts sucking faster.

"Fuck... Maria, that's so good..." I moan.

She slides my cock out of her mouth, making an audible 'pop!' sound as she does it.

"Am I the best out of the other girls?" she asks, licking up my shaft.

"Fuck yeah..." I moan out. I'm not even saying this to make her feel good, she really is the best out of them all at blowjobs.

"I'm glad you like it so much. I'll make sure to give you plenty even after this vacation." she says, with a wink.

"Just blowjobs?" I ask, teasingly.

"Oh, don't worry. I'll fuck you every chance I get." she says, sliding my cock back into her mouth.

I tilt my head back and moan out in response, and she starts to bob her head back and forth.

She keeps sucking me off, and I get lost in the pleasure, until suddenly, I hear a door open.

"Oh you fucking bitch." I hear someone say.