I continued my slow movements not wanting to come too quickly as I nuzzled my face in her neck and hair.
"Your ass feels so good, sis" I whispered
"Your cock feels so good, I can feel it throbbing in my butt" she moaned arching her back pushing more of her ass into my pubic bone.
I pulled out about an inch unexpectedly and she drew in a sharp breath before I plunged back in with a grunt. I continued my short thrust until I had her screaming muffled wails into the pillow grabbing fistfuls of my sheets. I knew I only I had about ten seconds left before I lost it and I pulled out my long slick shaft to the tip before pile driving back in releasing a torrent of hot cum into my little sister’s ass.
"Oooooohhhh" she moaned a long moan squirming underneath me as I continued filling her ass with sperm. I moved off of her slowly letting my prick slip out her butt.
Her gaping hole was such a sexy sight and I could see a little river of my semen trickling out. I leaned down and kissed her back. I could hear her breathing slow and noticed she passed out.
"I must’ve done a good job" I smirked laying back sighing. I dozed off satisfyingly only waking after I heard the commotion downstairs an hour later. Cat was already gone and my mind raced with thoughts of how this would affect our relationship.
I went downstairs to join my family. It wasn’t rare for us all to commune amongst each other in one room. With twelve people it was a bit chaotic but I sometimes enjoyed the commotion, though with me having fucked one my moms and now my little sister things may be a little complicated.
The moms prepared dinner and we all sat down and ate. Dad joined us in the middle of our meal. I made as little eye contact as I could with Carol and Cat. It was extremely hard not to look at them too much.
After dinner I talked to dad for a while and he told me to take the weekend to get our lake house ready for the following week. It was an annual exclusive family holiday he created because my mom always said he worked too much so once a year he took a week off from the construction business. And trust me a week is a lot for him.
I made plans to leave for the morning and in my room packing when Carol appeared in my doorway. I was about to say something when she put her finger to her lips as if to shh me before closing the door and sauntering over to me.
"Ready for your surprise" she whispered descending down to her knees. I so wanted to let her but I knew the risk of getting caught right now was too great.
"I really am mom, but we can’t" I said stopping her much to her disappointment by the look on her face. "But I’ve got a better idea. Dad told me to get the lake house ready, I’m leaving in the morning" I said and she immediately lit up.
"I’ll go pack, not that I’ll need much clothing" she winked and walked out.
I could only gulp in anticipation watching her big ass sway as she left.
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