Serena began trying on bras as her mother handed them to her. There were 4 or 5 men wandering around the store and each time Serena tried on a bra Pe...nny had her come out and model them. They were all lacey and all of them let her big tits sway as she walked. One she put on was just black lace and the her nipples poked out holes in the cups. She walked out and had her hands up over her nipples. Penny pulled her hands away. Serena blushed. All of the men were looking in her direction. . "Now if you will be good enough to let me get some work done."Andy got up and headed for the door. "Thanks so much Mr. Foster, I'll tell Rudy."As soon as the door closed behind the young man, Old Foster left his desk and began hobbling back and forth, thinking. After a few moments, he glanced out the window, still lost in thought. Well, by God. There was really only one way to make sure the hormone shots were really doing the job. Give them a test-run!He was breathing rapidly - panting,. I have to admit that the sensuous feeling of her hands lathering up my body wasn’t helping me to stay under control, but he soapy hand reached down and began massaging the top of my legs and her arm brushed against my now very hard cock. It jumped at the touch and I said “I’m sorry mom” stammering it‘s way out.My mother smiled and said “It’s ok hun, I expected it to be honest.”I smiled a little and then “Well your … urm… top isn’t helping matters much.”My mother looked down and I saw the. The truck driver blew his horn and his buddy waved as they pulled away. I decided to tease her. “Your sister can suck the entire rod with no trouble and she never lets any cum out of her mouth.” “Maybe so, but you weren’t the first guy she sucked. She had a lot of practice before you came along, but i’ve never sucked a cock before. You’ve just had a fresh mouth.” I was shocked at this. It had never occurred to me that she was so inexperienced. We were almost home so I had to get my pants back.