" Warren belted out a rendition of "Big Girls Don't Cry" by the Four Seasons that had the room laughing and applauding before he was done. "High enoug..., big guy?" Damn straight! Tighten that underwear!" Papa Bear replied.Caitlin giggled. "My turn. Tim, truth or dare?" I'll go with the truth." OK. Is there anyone in this room you would like to sleep with that you haven't?" Oooh, nasty. All right--Alexa." Heidi hit him. "Hey, I'm just answering the question!" My turn," Elise said. "Warren, truth. How the hell does she know about Joanne, I groused to myself.I called her Becky at dinner the next night to everyone's surprise. "Becky?" Dad asked, "what happened to Sissy." Sissy is for little girls Dad," I said in a fake, deep, serious adult voice, "and now that Rebecca has grown into a such a lovely young woman, I think we should put away her childish names. You may not have noticed Dad but Miss Malloy's chest has sprouted quite considerable protrusions."Mom, trying to stay serious, was. As I moved towards her bedroom I heard some noises and went to investigate. Her bedroom door was cracked enough where I could see in. I peeked in to see if she was ok and was shocked to see my grandmother lying on the bed with Roger on top of her thrusting away. A lump formed in my throat and I went to turn away. But I suddenly found I couldn't. I felt my palms get sweaty and a hole open in my stomach. My crotch started to tingle and for some reason I froze, watching this old guy humping my. She was tired from the very long day and all the alcohol. She laid down in the livingroom and passed out cold.Her mouth gaped open and she began breathing heavily. She was sleeping really hard now.My cock started twitching in my pants as my mind wandered...I brushed her hair with my hand and got no response at all. I did it again just to check, nothing.I put my finger in her mouth. She was sound asleep. It must be the turkey...I took my pants and shorts off and started pumping my cock.