I think I had one very happy little sister. Just as we finished mom drove up with her car loaded with food for supper. We ate like kings and crashed i... the living room stuffed to the gills. We had a good old fashioned family meeting and talked about everything we had going on. About nine o'clock mom and dad left and Sandy suggested it was close enough to bed time to hit the sack. I locked the doors and shut off all the lights. We headed to the bedrooms to get ready for bed. Jean and I weren't. Now while she was cleaning the utensils, I grabbed her from behind and started pressing her boobs after inserting my hands inside her dress.She said, “Leave me, you are going to get bigger boobs today”.I didn’t leave her and instead, I started giving butterfly kisses on her neck. With those kisses, she was getting aroused and she turned back to face me. I gave her a liplock. We were nurturing our bodies while kissing each other.After some time, she said, “Let’s go”. We left.As soon as we. Linn’s eyes looked their way too. It probably made her hotter to see her friend getting fingered by Mark. Linn looked my way, deep in to my eyes and said with a very sexy voice, "Why don’t you come and take of my panties?"This of course needed no further encouragement. I moved over to her and gently slid her panties down, revealing her pussy. The way her pussy lips were spread indicated she was very hot. I let finger draw circles around her nipples and then gently ran it down.From the corner of. She smiled at me, but I sensed that something was wrong. Usually, she was animated with young enthusiasm, but today she opened the car door very slowly , and eased herself into the seat next to me with a low groan. “What’s wrong Leece?” I asked. “Aren’t you feeling well?” “Oh, it’s the new gymnastics coach,” she pouted “He’s working us to death, and I didn’t stay in very good shape this summer. My legs and back are all sore, and we’ve only had two practices.” she twisted her shoulders from side.