“You ready to have some fun big boy? It’s time to see if you can hang.”The other two met up with the group, and then I saw the first obstacle of...the day. There was about a 15 ft drop along a sheer cliff in front of us. In some spots there were trees growing out of the side as well as some bare spots.I put the pack down so that they could pull out the ropes and harnesses. They were going lower the dogs down in the harnesses at a bare spot and then climb down themselves.Fiti was lowered down. I then slid my left hand around from her breast to her back, and lowered it until I felt her plump butt cheek. I grabbed her cheek and squeezed, then kept going lower until I felt the bottom of her ass. As I continued to rub her clit, I reached around and explored with my left fingers, eventually finding the very bottom of her ass crack. I moved my fingers closer to her asshole as I squeezed her cheek. “Keep going,” she whispered. “Put your finger inside of me. I want to feel you inside me.”I. That explains why I was to sleep with my little brother.“Oh, you horny boy. You’re ready for another ride?” she asked in a singsong whisper as she started slowly sliding up and down my engorged penis. Aunt or not, if she was willing to give me another fuck, even if mistaking me for her husband, who was I to complain?She climbed up my body until just the tip was inside her and fucked herself with just my head as she said “Here, suck on these, will ya?” Finding a large mam in my face, I greedily. I didn’t know what to say in response. I looked down at Becky. She had one leg raised at the knee and I could see her naked pussy. It was very moist. “You really want to do this don’t you?” I said as I reached and touched her. Becky nodded. I kissed her and gently pushed her back on to the duvet. As I settled between her thighs her hand reached down and guided me into her. “Will you let Malcolm get me pregnant?” she asked me. “The word ‘Yes’ escaped from my lips before I could stop it..