As she knew he would, Mark rang the doorbell within five minutes after her mother and Frank Boswell drove away. The moment he was in the house, they fell into each other's arms on the couch. It was so nice to be all alone with her mother gone. Usually they had to mess around out on the patio, but his sister, Barbie, was always hanging around.

"Honey," Robin whispered when their lips finally parted after a long tongue-sucking kiss. "Why don't you play with my tits?"

Without another word, Mark quickly unbuttoned her blouse and removed it, letting her luscious young tits spring free. He cupped her bare tits in his hands. His thumbs deliciously strummed her erect nipples.

"Mmmmm," the girl softly crooned.

Robin felt a delicious tingle streaking from her sensitive nipples right down to her hot virgin cunt. Writhing in horny abandon, she felt a flood of steamy pussy cream soaking the crotch of her panties.

"That feels so good," she whispered when the boy lowered his head and began kissing her big firm tits. He was soon running his warm wet tongue all over her tits, tasting the perfumed fragrance of her naked flesh, circling her deliciously stiff nipples with the tip of his tongue.

Finally moving his mouth to her other nipple, he sucked that in. It was firm and silky, and he loved the way it throbbed between his lips. As he wetly pulled and sucked on the tender pink bud of flesh, Robin squealed and wriggled with joy. The faster he sucked, the more heavily she creamed, thoroughly soaking her panties with her horny juices.

Mark's heavenly sucking was getting the young girl more and more excited, making her want to cling to him, to writhe, her overheated body against his. Her nipples were responding deliciously to the suction of his hot mouth, getting longer and rigid and goose bumpy, becoming as hard and erect as an aroused cock. The boy ran his hot slick tongue all around her tingling nipple, making Robin squeal with pleasure as she felt another hot burst of cunt juice flooding into her panties.