She could feel herself coming to another climax but wanted to turn it up a notch."Jacob, promise me you will cum in my mouth after you get through fuc...ing my ass!" she cried out."Fine s*s. I'll blow my load down your throat the moment I pull it out of your slutty ass."Heather launched into an orgasmic frenzy after her brother promised to ass to mouth her. Her ass clenched up rhythmically as her body shook with pleasure. Jacob felt himself wanting to cum as his sister's ass glided up and down. I decided to see if she would reject me, so, on the way home I held her hand. No rejection there. I turned her to face me, kissed her, and she kissed me back. I thought no more of it. She liked me and that was enough. We ordered a take-away and watched a bit of TV at my house till it was time for bed.At bedtime I was gobsmacked when Brenda said " I hope you don`t mind, but being in a strange house would you mind if I shared your bed? I`m a bit nervous being in a strange house. We could put some. Emerald told her about our dinner and about the movie. Then she actually told her mother about placing my hand on her breast in the theater and placing my hand on her inner thigh in the car on the ride home. I was amazed at their relationship.Then her mother asked what she had planned next and Emerald said, “I’m going to show him my big boobs and then give him a blowjob or two before I send him home.”Once again I could not believe that she had told her mother that.He mother laughed and said,. She admitted she was thinking of looking for another job.At night, if we were awake between sexual episodes we talked about our personal lives, me about Hildie, her about what she called her 'mistakes.' She apparently had a penchant for falling for the wrong guy. She had three long-term relationships, all of which petered out (sorry, pun not intended nor accurate) after five or more years. She was sure the first two were due to the on-call nature of her work at the time, hence the move to her.