She put her hand high on my thigh, grabbing my cock and began rubbing it through my pants. She then said, ‘Your sister told me what happened’. I f...roze and my hardening cock went totally limp. She said, ‘Your sister said she walked in on you while you were jerking off and even watched you.' Just then my sister ran to my window and said her car was done and she would pick up some pizza and beer and meet us back at her apartment. I was dumbstruck by what Grace said and just nodded. On the drive. .I simply touched her palms which were so warm..Then opened my zip under blanket and put her warm hand on my dick..It was the first and best experience of my life..I confirmed that aunt is busy and den I put my hand on her big loose boobs ..Firstly I pressed it from above her night top but later I pulled her top up and inserted my hand from beneath..She was wearing a tight slip so target was not easily reachable..But somehow I managed to touch her bare boobs which were amazingly soft and big. She was still riding his dick. She locked eyes with me as she started to slow her grinding on his pelvis. She shuddered as she finally stopped sliding up and down his cock. She sat up and turned to face us. She reached down and took off the condom. We both watched as she held it up so we could all see his load settling at the bottom. She sucked the outside, so that she could taste her own juices. Then she turned upside down so that his cum fell out into her mouth, down her chin, and in her. It was the Enterprise.I frowned. Had my Spock taken possession of a similar device in ouruniverse and been ordered to Halka to test it? But no, this wasn't myEnterprise - the markings were wrong. Which meant it wasn't my universeon the other side of that portal."We're being hailed, Captain," said Uhura."Onscreen, Lieutenant."An image appeared of the bridge of that other Enterprise, but it mightjust as well have been a mirror. There was no analog of me, but theywere all there, Kirk, Spock,.