True, we were on vacation. But I knew while we'd have a good time going to visit a place I loved, I knew the actual part of it being with my wife wasn...t going to be the most fun. Prude, very lame, stuffy and stuck up at times, it was difficult to tolerate her boring personality. Thank God Katie and Mandy were there to keep it fun. And God knows, Katie had kept it off the wall and crazy.It escalated one night when we wound up naked in the hot tub. Not a situation I thought I'd see myself in.. I was a bit surprised and was lost for words, by now it we had arrived at the hotel and had just went past midnight. I went and sat in the hotel lobby to use the wifi and Aunty Tania followed same and she carried on giving me compliments. To cheer her up I complimented her telling her husband was good and that she had it better than most she said I guess so and I went to look at my phone. There was a few mins of silence and then I felt aunty running her fingers up and down my cock. I looked at. I decided that was a fun place to play and I waited until like 10 or so (I'd had a few drinks) and decided to go hang out at the jacuzzi. I decided instead of a real swimsuit, I would just wear some panties. I had several with me, none of which really stood the test of being a swimming suit. I settled on a bright orange pair of nylon string bikinis that fit pretty tight (i.e. they held stuff in pretty good….as long as I didn’t’ get too “excited”). I looked at myself in the mirror and convinced. " I joked.She pressed her lips against mine. Our mouths opened,and our tongues met and intertwined. Precum was oozing out of my cock as My sister and I were tongue wrestling. My hand worked it's way down her hip, turning to her nice ass. I caressed and squeezed her ass cheeks. Then I reached down, grabbing the inner part of her undies from both ends, and pulling them up,wedging the fabric into the crack of her snatch. Her moan was intense,and almost bit my tongue, as I forced her underwear to.