I couldn’t believe that he was telling me to help him in fucking my own sister.I just couldn’t move a mussel after hearing that. He then almost sh...uted on me in anger. I just putted my both hand under her under arm and grabbed her; my fingers were touching her firm boobs. Then I pushed my hands further inside her under arm and almost grabbed her both boobs for better grip from behind. He asked me to stand on the floor; I landed on floor from sofa.He also followed after me standing, she was not. "Kelly replied, "Good morning to you, you great fucker."Just then the telephone rang and, with Trevor's slightly softening penis still inside her, Kelly answered the call from her mother."Are you alright darling, you sound out of breath, have you been exercising?" asked Fiona."Yes, yes I am fine, mum, I have just hurried out of the shower," said Kelly in an untruth.The conversation went on with Fiona telling Kelly that she and her dad would be home about nine o'clock Monday and then Fiona said,. Then I rinsed everything off and touch there again and it definitely was cum... I didn’t feel horny or maybe I was but it was quite weird. I got out of the shower and got changed into a dress but left the underwear off, I didn’t want it to cum and having to change my underwear every time. I got myself a yogurt and banana and sat on the couch and watched tv until I finished eating everything. I stood up and went to throw away the garbage and felt my cum running down my leg.... the got a tissue. Then I slowly trace a path up her crack to her clit and again she cries out "OMG! OMG!" in lustful desire. Reaching her clit, I let my tongue swirl and twirl around that hard little bud again and again. I slowly lower to her wet pussy, tongue fucking her then I go back to her clit, then take long slow slides with my tongue from her ass to her clit. I stand up and move to the side, Erika rolls onto her back spreading her legs, feeling my hairy legs as I crawl between her legs. Suddenly Erika.