my sister??

So I was wandering around Gnutella one day, searching for youthful ladies I hadn't seen yet, and I came across a very special video.  It is the hottest thing I have ever seen.

/b/, i watched my sister play with her tits, cunt and ass for a webcam two years ago.

We're both in college now on opposite sides of the country, and I'm married with two kids.  I want your retarded (and good, if it exists) advice: how can I manipulate this situation so that I can bone my sister and my wife doesn't find out?

Links will be provided if your advice is good and i succeed, in which case you'll see the original video (if you haven't already, you sick bastards) and one of the two of us, which I will make.

For your pleasure, I provide the following information: I'm 6'4" and skinny, but muscular.  My sister is 5'8" and curvy with fantastic, though not huge, breasts.

how about this then?

we had a heater in the wall in the bathroom growing up, and after we got out of the tub or shower or whatever, we'd stand up close to the heater and dry off like that.  Well, one day my sister stood a little too close to the grillwork and got a hatch pattern burned into her left asscheek.  We called her waffle-bottom behind her back.

you can see it in the video if you look closely.