My gf Diane was 20. her sister, Linda, was 18, I was 22,m, in college. I had no idea Diane, and her sister fooled around. In bed one day, upstairs, at the mom's house, she told me her sister wanted to fuck me, that led to a very hot session. A week later, her sister simply walked in on us. Told us that she and their mom knew we were fucking, told her sister to show her my cock. Didn't ask, told her. Diane told her fuck you but pulled the sheet off my hard cock. I'm not huge, more like long, not thick. Linda told her she was going to suck it. I just stfu, as Linda gently grabbed it, began to stroke me. They kissed. Then Linda kissed me, a wet one. Diane fondled her sister's breast, as Linda stroked me. Linda told us their mom was listening. They laughed. Linda touched my balls, I moaned, loud. Linda told me you cum on Diane' s boobs, no problem, but some went on my gf's face. Linda kissed her sister and licked my cum off her sister. Diane called her a showoff , they laughed. Linda told Diane that their mom was jealous.
Two days later, I heard Linda tell her mother to go get in her bed, her mother silently obeyed. Once again, Linda came into Diane's room, got naked. Wow nice boobs, ass. Told Diane she was going to suck my cock, Looked at me, not a word, began to suck me. In a minute, Linda told her sis that " she's ready, waiting". They took me to their mom's room, she lay on the bed nude, large boobs, pretty hairy pussy. Linda told her mom she needed cock, I was going to fuck her. Neither me or mom said a word. Except to me, Linda tells me to fuck her, tells my gf to lick...it. I asked her mom if this was what she wanted, she barely gave a shy nod. Linda said mom hadnt had cock in four years, just tongue... fuck her. I did, her mom responded loudly, Linda says to her sister.. "now", I feel a tongue on then in, my ass. Her mom is really going to it she is so wet, squeezes me, I tell Linda I'm cumming. Good, she says, mom needs a big load. I grabbed her ass, as Diane's tongue fucked my ass, filled their mom with a load. Diane says to me, " we do what Linda says". Linda kisses her mom, tells her that in a couple days, Diane is going to eat her, "then he is going to fuck that ass." Her mom smiles, they kiss, Linda kisses me. Then tells me, go make my sister cum. I did. End part One