Cindy had to have been mid 30's if not older at this time. She had long reddish hair that came down to her butt, She always wore faded jeans that were...tight fitting and what I though at 13 wasn't exactly sexy. It wasn't until Cindy came out in small grey shorts and an over sized looney-toons bed time shirt which clearly showed her large breasts. She was not wearing a bra and they bounced gently as she walked around the house. Cindy came to sit next to me and caressed my leg asking if I needed. “Here,” he continued. “This leap to the passion and intensity of your first draped nude—you stalled. Your paintings since then have improved technically, but there has been no great movement artistically. It’s obvious that you have a strong connection to your models, but the relationship is not speaking to me.”“What ... can I do?” I whimpered.“Arthur, I know this hurts and I’m sorry. That’s why it’s called PAINting. All I’m asking you to do is look inside and see if that genius is still hidden. I held my sister tight and we just held each-other as tight as we could. After we both started to let go, my sister laid back on her bed and spread her legs. I looked at her pussy in awe. I went onto my knees on my sisters bed and went in-between my sisters legs. Then I held my penis and rubbed it against my sisters pussy. We both moaned real quietly as pleasure was felt all across our body. I found an opening in her pussy and knew what was to go inside. I aimed my penis in her small pink hole,. He led her a few feet over to the bed, and bent her over the side of it as Lynn cried out, “Oh no! Oh no!” Alex now slid his shorts down to the floor. His cock was throbbing with excitement, and he laid it down onto Lynn’s beautiful ass. She knew what she was about to do was wrong, but that didn’t stop her from offering her wet pussy to him. She felt a huge rush of adrenalin come over her, and seconds later she felt the head of Alex’s big cock penetrate deeply into her swollen pussy. He began.