For the briefest of moments, I saw a sadness in her eyes and a small tear form.Sarah turned back to Jill and kissed her hungrily as they both came one...last time. Sarah then leaped off of Jill in her typical fashion and landed on me, pushing me from Elaine's pucker. Then she sucked me into her mouth and brought about my final orgasm of the night. As she sucked the last of my spunk into her throat, I suggested, "Maybe don't wait a whole year to visit us again?" We'll see," she uttered as she. I knew this was going to be a tricky conversation with dad. The girls had flown back to school late the night before. After our afternoon on the nude beach together on the Friday before I really hadn't gotten another chance to talk to them away from my parents or sister. This was my first chance to brief dad."The nude beach?" I nodded yes."You took your sister to a nude beach?" I nodded again."Did you take your clothes off in front of your sister?" Dad's voice was getting more incredulous and. It was a pleasure chatting with him, we became friends online. I met him a few times a week and we always had a lot of fun. Sometimes we used Skype to cum together. He used to wear his girlfriends panties every now and then, which made his cock really shine. Oh my god how I loved that big smooth cock. Every time I noticed my friend coming online I felt a strange feeling in my stomach and my heart started to beat faster. I was just in love with his beautiful cock.It was time for the next step.. Why are you sleeping with him?”“I’m sorry baby,” she said, tears now tracking down her face. She was still lying down, so they were running across her nose and into and out of her other eye. “I am so very sorry. But I was so lonely, I needed someone.”“We made vows to each other, to love each other forever.” I said.“No,” she replied, more tears flowing now “Not forever. We said ‘till death do us part’, that was the promise we made baby.”“’til death do us part,” I repeated. A little confused by.