Now Or Never

I posted here awhile back about how my sister in law flashed her sexy red thong to me, well I wasn't sure if she knew that was happening but it was a beautiful site anyway. Now I've discovered she's coming home to stay for the weekend. I don't think we'll ever get to push it further as in get into ones another's pants, which would have been great but I don't see it happening! I was however thinking of hiding my phone in the bathroom when she's gonna take a shower. She has huge sexy boobs a ass that I'd fuck no questions answered. Has anyone done this and how it it work out for you? Did you get more then just seeing?