Amelia and Issac

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"Uggghhhh!" I heard another loud groaning noise from my elder sister and I noticed that the door was slightly cracked.

'Should I?' I hesitated but I had a lot of curiosity and decided to take a peak.

I slowly walked forward and looked through the crack and saw Amelia's room in my gaze, Her room was slightly bigger then mine and my eyes went toward the other side of the room where a large queen sized bed sat.

'W~what?!' My eyes went wide with shock and my body trembled as I saw two figures standing at the edge of the bed leaning over it.

The first figure was Issac and I realized that he hadn't left yet despite what I thought, He was standing straight up with his pants pulled to the floor along with his boxers and both of his hands were grabbed Amelia's behind her back locking them and pulling them to keep her in place.

'S~Sister!' The second figure was obviously my elder sister and I gulped as I saw my elder sister who was bent over.

'A~Are they?!' I saw that Amelia was wearing a blue shirt that was pulled up to her neck exposing her swollen breasts that were hanging down and flopping around.

She was also wearing a pair of dark pink hot shorts that were pulled down to her thighs exposing her plump ass and I could see a thick bush of brunette hair sitting on her pelvic mound.

Issac was behind my bent over sister and I could see his thick and long cock buried deep in Amelia's pussy from behind, He gripped her arms tightly as his hips thrusted from behind inserting the thick shaft into my sister's perfect pink slit that was spread open around the invading member.

I realized that they were having sex and I gulped in shock, I couldn't believe I was watching my own sister get fucked from behind but for some reason I couldn't look away as I listened to the sound of skin slapping.

'H~her expression' Amelia had a flushed face and she was drenched in sweat that was dripping down her body.

Her feet were turned inward and her toes clenched as she was pounded from behind, every time Issac thrust behind her I could see Amelia's supple ass cheeks jiggle and ripple.

'I can't believe she's doing something like that' I knew that my sister was sexually active I mean she had a child after all but seeing it in person made my mind muffled.

"AAGHHHHHH!" Amelia moaned as her head fell but she couldn't fall down due to Issac holding her arms from behind her.

"D~Damn your tight" Issac had a look on his face that was completely different from his earlier expression.

I could tell that he wasn't exaggerating as I saw my sister's pussy wrapped skin tight around issacs cock but then I realized that he was completely raw with no condom pounding my elder sister.

"Clench your Pussy!" I was surprised as Issac grabbed both of Amelia's hands with one hand and used his other to slam it down on my sister's ass.

Slap!

"aghhhhh!" Amelia screamed and The loud sound of the smack rang out and I could see Amelia's ass ripple as a red hand print appeared on her milky cheek.

"C~calm down" Amelia struggled to speak but Issac didn't seem to care as he mercilessly pounded her and raised his hand once more.

Slap!

Slap!

Slap!

Issac spanked my elder sister's ass multiple times littering her milky skin with red hand prints and purple bruises and I could see Amelia twitching as she was pounded from behind.

Slap!

"Didn't I tell you to clench your pussy" Issac slapped her ass one more time with a smirk on his face.

'He's acting different' Normally whenever I saw him he acted like a nervous and shy guy.

I used to think that Amelia took control in the relationship based on her personality and yet here she was being bent over and told to clench her pussy while being spanked.

"You like that slut?" Issac smirked and reached his hand down and I was shocked as he spread Amelia's cheek and exposed a tiny pink rosebud.

"W~wait n~not the~aghhh!" Amelia tried to turn around and stop him but her hands were locked as Issac slowly pressed his thumb against my sister's asshole.

"Ughhhh!" Amelia groaned as the finger entered her ass forcefully pushing against the extreme tightness.

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100+ Stories available