We will call her sister Sam to make things easier.So one Sunday both my girlfriend and her sister were at work and both there parents had went to go s...opping leaving me alone in the house which of course I used to my advantage, sneaking into sams room. Before I even got into the room my cock was hard and throbbing just thinking of what I was about to do and I often find the risk thrilling and a huge turn on. I could feel my legs shaking with adrenaline as I got up and snuck into her room.As. Both his hands rose. His fingers touched the deep brown pinnacles of her nipples. She sucked in her breath, her chest heaving. The excitement of having her son just feel those rubbery tips brought her nipples to life. Beneath the circling caress of his fingertips, she felt the fleshy buds swell, fatten. They thickened and stiffened with shivery arousal. She moaned, sighing out the pleasure of his gentle fondling. Her tits swirled with warmth. Her whole body seemed to focus its attention on. I usually keep my eyes closed, but with such an attractive lady, I wanted to see as much of her as I could. I thought of tomorrow's flight to St.Petersburg, and the chance to speak what Russian that I could. she leaned forward to work my inner thigh and hip sockets. Her ample breast became almost entirely exposed. That and the location of her hands, had me rapidly becoming aroused. I saw that the sheet had tented with my erection. I was hoping it would shrink, before she noticed. Looks like you. She was then guided through one, of several metal detectors “That promptly went off”! This was a normal thing that happened quite often, and at first no one paid much attention, but after the third time through with more and more people held up behind her, “Obviously something was wrong”, and a rather large crowd had gathered to watch! This had made Sue already dressed in a rather skimpy outfit the center of “Embarrassed attention”. The security agent had told her to hold her hands up high.