I hear footsteps and see M standing at the door in her nightdress: ‘Are you coming to bed with me or what?’ The ‘or what’ option seems the lea...t promising of the two so I say: ‘Okay.’ She clicks the telly off and turns off the lights. ‘Try not to make too much noise or you’ll wake my mother up… she won’t be too pleased to find you here.’ I follow her up the stairs to her bedroom which remains unlit. As my eyes adjust, the darkness becomes a gloom and I can just discern why she doesn’t want it. “Why in the hell did you want me to fuck my sister?” I asked“I thought you would get tired of me.” She said“Don’t give me that bullshit.” I said trying to hold back my anger.“If you don’t tell me what’s going on right now I am going to think you want our relationship to fail.” I said“No that’s not it at all.” She said trying to give me the puppy dog eyes.“Whatever.” I said as I got up got dressed and left. I walked to my car and backed out, I spun around and as I started to go I saw Shelby run. So this time Pete had slid a lubricated condom over his aroused cock and then slid it deep into his hot lusty sister's tight horny cunt before he fucked her and him both to orgasms.When Pete and Samantha both came down from their orgasms, Pete was still lying inside his sister's hot wet pussy with his cock feeling almost numb from just having cum so powerfully. He found himself almost disbelieving that he was lying her on top of his own sister with his cock buried inside her pussy and that they. ’ ‘That’s right sweetheart, I’ll be a bit tender in that area for a while,’ he said sadly, ‘but we can make up for it later,’ he added smiling. ‘And,’ he carried on almost laughing, ‘we can stay in bed all day the Saturday before we leave. Hopefully we won’t have anything to do then other than make love.’ I strong feeling of love for him washed over me, he was doing this so that I could have his baby. I hadn’t realised that he would have to have an operation. I was upset and worried. ‘I didn’t.