Relief washed over me as I stammered an OK. Then as I reached for the lotion she lifted her tummy and grabbed the towel and whisked it away. The bright yellow thong covered very little of her and both her ass cheeks were right before me. Damn she looked good. I looked at my hand and it was shaking. What the fuck was wrong with me? Here was a young woman, my son’s girl friend no less and she was only asking for some lotion on her back. I took a deep breath and knelt beside her chair and put some lotion on my hand. I rubbed my hands together...