David just stared at her, wondering why she was watching this. When he was done, she turned her face to him and said “I love you and you are mine, for now and ever.” David smiled and replied that he loved her forever too, wondering a bit at her odd choice of words. Inside they found more presents from some of the town folk and several UPS boxes for Tillie. Looking down he felt a familiar feeling in his balls and without warning he came hard. She pulled her chest to David’s face, burying his face between her tits as she shocked into orgasm. Tillie had changed the channel to a porn channel and was watching a woman get fucked hard by two men. Come he did, he threw his head back crying out as Tillie continued her assault on his cock and senses. Hazy, David woke up and found himself naked on the couch. He was amazed at how she had grown, before him she stood as a sexual predator, not his kid sister.
