My SIL made me…

Once or twice a year my wife’s family go away on a weekend together. We typically go to some sort of resort with holiday homes with lots of facilities for the kids. To be economical they typically get 2 homes and we share them.

One huge advantage is that her parents wake up early and are fine with looking after the kids for a bit. This means we can sleep in a bit together, something that rarely happens at home. The rest of the family typically rises rather early as well. So this presents bit of an opportunity. As we share the home there is some privacy but we do have to be quiet. My wife can and loves to be very loud and doesn’t enjoy cumming if she can’t. She’s also paranoid about being caught.

Over the years my wife and I developed a bit of a routine. When we wake up we’ll cuddle and spoon for a while until she feels me getting hard. She’ll then start playing with my dick for a bit and will at some point slide under the covers to give me a long and extremely hot blowjob.

A few years back the top floor of the home we were in had 2 bedrooms: ours and my SIL with her husband’s. My wife and I were enjoying our usual routine when I heard some noise on the stairs. My wife, whose hearing isn’t all that great to begin with, was under the covers taking care of me so she didn’t motice. I did see our door wasn’t fully closed but not wide enough to see inside. I hoped it was just my SIL or her husband going into their room, so I figured we’d just keep going quietly. Just as I thought we were safe the door was pushed open and my SIL looked into the room. She initially obviously just saw me so she started telling me they were about to take all the kids to the indoor swimming pool and told me we would needed to get a move on if we wanted to join. She stressed the point by stepping further into the room and showing that she was already in her bikini.

My wife completely froze with my dick in her mouth as soon as her sister started talking. She was holding very still hoping not to be noticed.

After my SIL finished speaking she looked around the room, curious where my wife was. Just as she wanted to ask about this she noticed the additional bulge under the covers. She then sniggered, pointed at the bulge and mouthed: “is that her?”. I nodded in confirmation, it’s not like it wasn’t obvious.

She then gave me questioning look while making the hand / tongue in cheek sign for blowjob. Feeling cheeky I nodded again. She grinned and said: “ok i’ll leave you to it then”. She didn’t however, make any move to leave and expectantly kept eye contact with a huge smile on her face.

After a few seconds of embarassment I started getting very horny at the idea of her watching me get sucked off. I gently put my hands onto my wife’s head (on top of the covers so my SIL could see) and slowly started moving it up and down again. My wife assumed her sister had left and enthusiastically set about pleasuring me again. Not to brag, but she gives the best blowjobs ever…

I don’t think my SIL expected me to actually do this so initially her gaze kept going from her sisters head bobbing up and down under the covers to my blissful expression. with her mouth open in shock. She then got into being a part of this and the shock turned into excitement. She started licking her lips and moving her hands over her body. She slowly took off her bikinitop and started showing off her massive tits to me. My wife is very hot but has only average size boobs. Not sure if my SIL knew this but I have a serious thing for huge ones. So it didn’t take very long for her show to cause me to cum very very hard in her sister’s mouth. My SIL blew me a kiss and fled the room while quickly putting her bikinitop back on.

My wife spent a bit more time thoroughly cleaning my cock before coming up for air. She said: “Wow it’s been a while since you came so hard. Apparently interruptions really work for you, maybe we should ask her to do that again next time”. I didn’t really know what to say. I never told her what really happened…