A voice behind her brought her back to the present. “The really fun stuff is in the back.” She jumped and knew she turned scarlet in shock and emb...rrassment. She had no idea anyone was even in the store, let alone right next to her. “I’m so sorry, I didn’t mean to startle you. I wasn’t kidding, though. Would you like to see the good stuff?” She glanced back and looked up at the source of the voice, the steady calm voice. He wasn’t particularly handsome but he wasn’t unattractive either. His. "She laughed, "Well dear, I'm glad you had fun. Now come eat so we could get going, momma has a lot of shopping to do while you're at Grampa's."I waited until she was well out of sight, and hurried around the room putting my plan into action. I grabbed my purse, and shoved the pair of panties into it. I decided I'm not wearing a bra either. With trembling finger I put on the jumper. My pink nipples hardened and moisture covered the lips of my pussy. I hoped that no would notice.I rushed into. I had a boner as i was wearing shorts she also noticed it.I saw her staring at my rock solid dick but i dint tell her anything.She told stop staring i moved my sight and i told her that she has nice boobs. She said stupid you shoudnt say all that as i am your sister.I told your my cousin sis and not my own sis.I asked her to arrange things on the tv stand i and while i was getting things from other room i noticed her from back her tee had moved up and her black panty was visible.I went to her. I wondered if I looked pale too, since I was feeling a touch of nervousness myself. I wanted to prolong the suspense, so I decided to ignore her signals a little longer, and said to her, "ok, let's try again," and gave her another problem to work. She looked like she was unsure what she wanted to do, and started to say something, but picked up her pencil and began to work.As she leaned forward I once more gazed down her blouse. The view was much clearer now. Her breasts were indeed smallish,.