He snuck up behind her and slipped his hands around her waist and up to her sagging breasts. Em was so surprised, at first she thought it was Brian bu... then she realised the hands were not his. She tried to turn around to see who it was and Garth ducked down so that she wouldn’t see him straight away. All the time he was rubbing her nipples and holding onto her boobs. He came around to the front of her and took one of her nipples into his mouth. Em shrieked and tried to pull him off. But Garth. I wanted to do it again, but didn't dare. I was worried she would get pregnant. In fact, after we did it, I was stressed out of my mind until my sister started her period. What a relief that was when she told me that she had started her period! God I would never have been able to live down getting my sister pregnant.About 2 months after we first fucked, my sister (who was just getting hotter than hell the more she matured) was out in the back yard sunbathing in a black bikini. She had nice big. Prior to the movie we had dinner on Frank's dime and I was well on my way with two glasses of Chardonnay plus we got high on the way to the movies. Lets just say I was feeling grand!After the movie we all went to my boyfriends pad and sprawled out on his leather sofa. Chris put on the TV and was browsing the channels when one of those Soft Core jobbies caught my attention and I said lets watch this. They readily agreed it was cool with them. We got a little more buzzed and each of us had our. ?Oh my god, what are you doing, you dirty little bastard? she cried hitting me across the head and back as she spoke.?I can explain?, I stammered.Alas to no avail as Mary ran upstairs, tears running down her face.?I?ll go and see if she?s ok? Helen sighed.?Brilliant that went just as I thought? exclaimed Mark.?I tell you what, I recon you?ve fucked her for the last time, she?s not going to want a sissy like you after this? he excitedly added, before disappearing upstairs to ?comport? my wife as.