My vaginal muscles and ass cheeks were contracting so much that my skirt fell on top of her head. I opened my eyes for a moment as I felt the movement... and saw her calmly use one hand to push it back up out of the way, and then pull my undies all the way down to the floor, lift my knee ,and extract one foot.As she pulled me closer lifted my leg up over her shoulder, bending down further and turning her head slightly to get at me much better. Then she slid her tongue just inside me, and began. ." he paused to enjoy her beautiful smile, before going on. "I'm your father. You really shouldn't wear things like that in front of me." John hoping that she'd understand and it broke his heart when tears formed in her gorgeous eyes."I disappoint you?" Eva asked with a sniff and she hoped he liked it."No, you're beautiful, but ... how do I explain this to you?" he said as he reached to hug her near-naked body. "We can't do this. We have the same blood."Eva knew this was it. She would live on. ”Ellen told him to climb on top of her, she told him that he had to keep his weight off of her. Then taking hold of his penis again, she guided it to the entrance of her vagina. “Push forward slowly Billy.” He eased himself forward and felt it suddenly slip inside her.Moving slowly, he started to move in and out. “That’s it Billy, you don’t know how good this feels.”She was wrong, this was better than when he masturbated.Ellen placed her hands on her knees and pulled them back onto her chest.. ..Once in the bathroom, it was just a question of which pair I would borrow to masturbate in. There were a couple of thongs and a pair of ivory silk shorties. It just had to be those.I would have to be careful not to stain them but I couldn't resist putting them on. I loved the feel of the silk as I drew them up over my balls and my straining cock. Susie was quit petite and the knickers were very snug. My cock poked out over the waistband. This wasn't going to be easy. I settled for keeping.