I moved my fingers forward and slid one into Jackie's vagina. She purred and I crouched low, using my other hand to caress her clit.She bucked quickly... using one hand to cover her mouth. Our parents were in the next room, getting dressed for church. I tried to shush her to be quiet, but I couldn't stop touching her body. Her legs started to shake and she jerked forward several times, her muffled moans too loud but we were too far gone to slow down.Jackie came on my hand, rolling her hips around. You do want to wear more than just my panties, don't you Jerry? You can feel these silky things on your body while they are still warm from mine." I didn't need much encouragement from her and I was soon trying to figure out how to get into my first pair of pantyhose. I could feel the warmth and slight dampness left by her feet as I drew them over my toes and heels and my cock grew some more. I couldn't believe I not only was putting on underwear that this cute 16 year old had just worn. “Is it as it should be?” Alma asks. Now she watches her younger sister’s examination without hesitation.“There doesn’t seem to be anything wrong at all. As we can see, the foreskin retracts easily. It is as if she was born this way. Your parents were geniuses when it came to genetics,” Leah remarks, almost as if more to herself then the two sisters in the room with her. “However, I do have to check how everything appears when the penis is fully erect.” She runs her fingers very lightly all over. Tina stood there, her fingers in her mouth as she nervously bit her nails. “Come on sweetie; let me run you a bath. Why don’t you take off your clothes, and I will see if I can find you something else to wear later.” Tina shook her head. “It is ok Tina. I have the same things you have. Your water is almost ready.” Tina let her hand fall from her mouth. She slowly unbuttoned her shorts, then unzipped them and pushed them down her hips. Allie watched as she realized Tina was not wearing panties.