"You have beautiful tits, baby," Karen murmured, her tongue licking lightly at the rubbery tip. "You're skin is so creamy, so smooth. God, I could lick you all over!"

Karen wore a thin, tight halter that concealed her tits, but just barely. Before Susan realized what she was doing, she had untied Karen's halter and let it drop to the floor. As she did this, she felt her sunsuit slither down her body to the floor, and she stood there wearing only a pair of bikini panties.

She was fondling Karen's naked tits of her own free will now, cupping them, molding them, gazing hotly at them. Karen's nipples were brown, with large circles around them. Her nipples were succulent and hard. Susan's pussy was boiling as her desire grew strongly.

And then the front door slammed.

"Oh, God!" Susan yelped, pulling away from Karen quickly.

But it was too late.

Tom stood looking at them, his eyes huge. Susan covered her naked tits with an arm, the hand of her other arm over her pantied pussy. She stood with legs tight together, staring at the boy.

Karen turned and saw her son, and laughed in her throaty way. Deliberately, she cupped her naked tits and ran her thumbs over the sensitive nipples, not at all ashamed that her son was looking at her.

"Join the party, Tom," she said in a low voice, her dark eyes gleaming.

"Oh, God, Karen!" Susan blurted, bending to get her sunsuit and holding it before her. "How… Oh!" And she ran from the room.

Susan stayed in her bedroom, very embarrassed. She could hear Karen talking to her son, but the words weren't clear. Now and then there was a mumbled reply from Tom. Getting into her sunsuit again, she peeked into the hallway. Then she walked back to the living room. She stopped in the doorway, her eyes wide.