In no time she had my cock buried in her mouth as I continued to tickle her clit with my tongue. I could tell by her moans that she was hot, very wet ...nd ready to cum. Even though she pretty tight , she was so wet that I was able to slowly slide two fingers deep in her as deep as I could go. When I started pulling them out I stopped at her g-spot, which was already swollen, and started to rub it as I sucked and licked on her throbbing clit! I could tell she was about to explode. I rubbed her. “Em, for god’s sake can I have my clothes back now” I demanded.“Oh ok, if you must” she said starting to move down the branch. She got about half way before losing balance. She dropped my bag, which started to float off down the stream, and as I was about to make a grab for it a huge splash as my sister screamed and hit the water. She surfaced coughing and spluttering. My eyes darted back and forth from my sister to my bag which was rapidly vanishing down the valley, but Em really looked. I thought that the door bell was ringing but when I stopped I did not hear it . That is when I looked to the corner of the house and there she stood right there at the steps holding the certified letter watching me as i had my cock in my hand stroking it . She stepped up on to the porch as I stood up to grab the towel to cover up. She shook her head and said don't stop keep stroking it . She dropped the letter and she took both of her hands and grabbed her crotch. using both hands she felt up. You would have thought I’d have grown used to it, as I’d lost count of how many times I’d now seen my wife making out with her African American lover. But the clandestine nature of their nighttime rendezvous, whilst I slept next to them, just seemed to take things to a whole new level.That psychological pain and pleasure was big enough, but the physical spectacle only made it more erotic. The lovers were trying their best to not wake me. They made precious little noise as Jason lifted Claire up.