I looked at Cathy. “I gave her my phone number” Cathy said. It suddenly became clear. The insistence about Sunday shopping, the large amount of fo...od, Cathy had planned this.“Go into the lounge honey” Cathy said “leave dinner to Ruby and I”. I did as she asked. I smiled to myself. “That sneaky bitch” I thought, she had planned this without my knowledge. And the comment about Alf being away until Monday night. It sent my brain spinning. Was she going to stay with us? About 10 minutes Cathy called. I fumbled with the dress searching for the zip. "If you want aclue, not all dresses do up at the back" laughed Jane. I eventuallyfound the zip on one side of the dress and pulled it down. With the zipdown I was able to step into the dress. I slowly eased the dress upover my body, easing my shoulders through the wide straps. I was ableto reach the side zip myself and pulled it up. The tightly fittingupper bodice clung to my chest, making the most of my feminisedcleavage, while the skirt cascaded. Megan and Kim put their mouths on either side of Jack's penis and waited for his seed. Kim wrapped her fingers around his shaft and pumped him quickly. She felt him swell and his butt rise up from the floor. Megan put her hand under him and felt his cheeks clinch as his semen boiled out of his testicles and into the two girls waiting mouths. Kim and Megan were able to capture most of his cum, but some of the hot fluid landed on their faces. When the strong spurts began to subside and his cum. "Don't get up. I don't want to interrupt. Have fun."With a proud glance backward, the mother headed for the door with images in mind of her offspring nursing on her sister's breasts.In short order, Thad was on his knees licking his aunt while Gwen continued to suckle Abigail's tits. The experienced pair produced a powerful orgasm in their aunt as she rocked her pussy against Thad's mouth while Gwen continued to alternate between her sensitive breasts.Once she recovered, the bade the siblings to.