He was knackered. Balls empty, load spent. But while the girls were free to enjoy his cum between them, there was still work to be done. Unlike the si...ens of earlier, a dull ringing beep sounded across the bridge. The autopilot had taken them almost within touching distance of the planet’s surface. With the restored landing engines, this last stretch was going to be a breeze.“All work and no play, Captain...” Roxy reminded him.Cas cupped her cheek in his hand and gave Mercedes’ nipple a playful. I saw Evan one more time before we closed on the house….it was at his office when I went there to pick up some financing documents that Barry and I needed to fill out. I walked through his company’s bustling lobby and common area, then Evan ushered me into his office with a big smile and an effusive “Hi, Nicole….come on in!”, then closed the door behind me as I entered.I hadn’t really thought this through, so I don’t know what I was expecting, but as soon as the door to his office was closed,. Not real hard, but I felt every one of them.She slowed to a stop, and then moved onto the bed on her back. She then ordered me to climb on top of her and ride her dick. I slowly climbed on top of her and placed her dick at my opening. Since I have my own dildos, Sandi's dick slid in rather easily. I started moving up and down riding her. Sandi was enjoying the rubbing the strap on was giving her pussy. She began moving her hips up to meet my decent. It wasn't long till she was slamming into. Now I could indulge my obsession any day I chose just by going to library, my excuse of studying masking my real intention... that of ogling my older sister. Melanie always maintained a certain professionalism whenever she saw me at the Library, the only hint that we were siblings being a slight smile that she'd give me as she passed me in the aisles.And that's where things would have stayed, each of us living our own separate lives, Melanie not suspecting a thing while I silently obsessed over.