Betsy moaned and shuddered, and through it all, her daddy's cock continued its journey up her asshole. He hit bottom, grunting, and his daughter squea...ed, but she knew now that she could take it--all of it! His balls banged against her cuntcrack and against Becky's cuddling hand as the tip of his cock fucked deep inside Betsy's shitchute."Oh, Daddy!" Betsy sighed. "I feel like I've died and gone straight to heaven!" Then how will you feel when I do this, baby?" her father asked, beginning to. As I listened I found out that our mothers had been lovers since before Gretchen and I were even born. I also found out that Gretchen often joined them in the last few months. It was also their idea for Gretchen to have sex with me. At that moment I was giving Gretchen an orgasm and she told them all about it too.That night I slept with Gretchen and Mom slept with her mother. On Saturday I got to fuck Mom with Gretchen’s permission. She had wanted to see what I had learned and also to see if. I was so hard that I could feel the precum seeping into my boxers, but I ignored it for the time being, inhaling the scent of her arousal. It was so strong I'm shocked her parents couldn't smell it, but I know she could. Her breathing was heavy, becoming steadily more ragged as my hand slowly... slooooowly slid up her thigh, feeling the heat as I got closer to her lacy thong panties. I finally reached them and started to rub against her (now completely drenched) lips through her possibly ruined. "What the fuck is that?" he asked in an outraged voice."Insurance," she responded."Insurance? What kind of insurance?" he asked as she pulled the smartphone away from him."Insurance against you going back on your word to keep silent, it was also done so I get what I want. Imagine the reactions of your friends when I post this online? My little secret would pale in light of this," she answered.Gwen tossed the phone aside and embraced her brother again and placed her lips against his, This time.