Pulling out, I dropped onto my side next to Bigtits as we both gasped in the hot, humid air trapped inside the tent. Breathing hard, I was finding it ...ard to believe my luck. After a long, long spell of no sex except what my own right hand was able to provide I'd had my first blow job and now, though I hadn't asked, I knew from how wet Bigtits pussy had been I'd just fucked my first sloppy seconds. Hell, for all I knew she'd come to my tent after getting fucked by all three guys in our group.. The sunlight through her dress had already shown me that. “I enjoyed last night. Perhaps, if you’re not too busy screwing my granddaughter,” she pauses for effect, “we could have another go?” Melisa says catching me off guard. I choke at the mention of screwing Isabel. “I’ve no plans to screw….” “You might not have but SHE HAS!” I’m informed.” God will my dick ever sleep! Finishing my last rasher of bacon I announce, “I’ve got to go. I’m meeting Vincent at the stable.” Melisa comments, “Ah, so. ”“Do we know what kind of animal?” the detective asks. “Are we talking a dog?”The medical examiner’s face scrunches up. “We’ve got the preliminary DNA results and there is dog DNA along with human.”“What’s taking the lab so long?” Lee questions.“Besides the fact that they’re backed up?” she asks almost sarcastically. “They are looking harder into the DNA. What is strange is the fact that there isn’t dog and human DNA, but it seems it’s a combination of the two.”Lee looks at the woman puzzled. She said she had but didn't do it very often. She asked Robert what he thought of when he played with himself and he said he imagined having sex with a pretty girl like her.She laughed and thanked him for the compliment, then said “yeah I wonder what it feels like?”. Then totally out of the blue, she said to Robert “let's try it!”. I couldn't believe my ears, surely they weren't going to. Robert grinned nervously and said “are you serious?” and my sister nodded with an excited smile on her.