Lisa can't resist anymore.

“Hey, Lisa.” Beth replied softly. “It’s ok, let yourself go, sis.” “Owwwwwww!” She whined softly, while Bro D entered her slowly, making Lisa’s eyes grow big. “He’s huge!” Beth gasped to her sister, while Bro D continued to ease into her until she was completely filled.

Bro A slowly stroke a hand through Beth's hair. “There you go, girl. Who is a DKM slut?”

Beth closed her eyes in ecstasy and replied “Me. I am a DKM slut. Ahhhhhhhhhh..”

Smiling contentful, Bro A turned to to sight of Lisa not struggling anymore, being played with while watching her sister getting penetrated and seeing signs of surrender and lust in her eyes. Bro B noticed Lisa was getting hornier by the second and soaking wet as a result. He motioned Bro D in handing him the marker, which he got handed to him.

He popped the cap of the marker and slowly marked Lisa with the DKM letters. Lisa felt the marker on her skin and got hornier by the thought of officially becoming a DKM slut, making her lean back more and started to hump her pussy against Bro B’s leg, leaving a wet trail. Seeing how she needed to be filled badly, he turned her around, while Lisa kept her head turned to her sister getting slowfucked. Bro B slid his hands down Lisa’s back and cupped her legs right under her ass.

Still mostly enjoying the sight of her sister, she half noticed Bro B’s intentions and cooperated with his actions so he could pick her up and put her backwards on the stone. Feeling her ass touching the lukewarm stone she turned her head towards her soon to be lover, noticed his shaft pointing up towards her and was quite satisfied with what she saw. Wanting to return the favor, she looked Bro B straight in the eyes, gave him her most horny look and slowly opened her legs to give him a good look at her dripping pussy.

Bro D, in the meantime, was slowly fucking her sister next to her and Beth’s moans made Lisa notice how sexy her little sister could sound. The sounds that came out of her little sister’s mouth made Lisa want to get laid as soon as possible. Bro B seemed also eager in taking Lisa right then and there and aligned the head of his dick with Lisa’s slit, sliding in her with one fluid movement, making the girl gasp and her body arch.

While Bro B slowly and rhythmically pumped in and out of Lisa, the girl slowly leaned back until her shoulders and head touched the stone surface.

Bro B raised her legs and let them rest on his shoulders, while Lisa gave little moans everytime the Bro’s hard shaft sheathed her pussy completely. Without warning Beth’s mouth was suddenly on hers, while Beth’s tongue invaded her mouth and started to snake around her tongue. Lisa never kissed with a girl, but the last thing she would expect was to french kiss with one of her own siblings.

After the initial shock, tasting her sister’s lips and hearing her moan inside her own mouth, while continuously being impaled by Bro B’s shaft, she started to moan again and started to kiss her little sister back. She put her left arm around her sister’s head, gripping her hair and pressed her sister’s lips tighter on her own, while with the other hand she started to play with Beth’s tits and the hard nippels on top of those soft skinned spheres, which were rocking back and forth in sync with the pussypounding Bro D was giving her.