Days passed as Wednesday came near and I was thinking what her purpose of calling me to her house was. Then came Wednesday, I rang her doorbell and sh...e opened the damn door. WHOA! She was looking very hot and erotic. I could shag then and there looking at her even in her clothes. Imagine this, an extremely attractive girl with perfectly round and big tits and well shaped ass, in a skin tight sleeveless shirt and very tight pair of jeans which extended only to her knees. WOW! She was making me. I whispered, …. Oh, what a super tight choot you got Ruthi.It took me a while, pushing and backing off repeatedly, fucking my lovely sister until I felt my balls grinding on her choot’s tight opening.Aaaaahhhh!!! Ruth, you have my entire cock up inside you. She let out a deep breath and a sigh of appreciation while I held myself buried inside her.That’s it…relax my dear sister, I spoke softly feeling her move so slightly under me. My bobbing, circling waist must be felt deep in her choot via. What a moment that was!! I controlled my nervousness, as soon she entered inside she started to unhook her lower 3 buttons of her blouse and I can now see her white bra. Covering her milky boobs. She then lifted her bra from downwards, and showed her left breast, smiled at me she told me to come and take as much u want. I went near her and hold her back and waist, and started to suck her left breast from the front, I drink her milk like a baby. Her milk was tasteless, I caught hold her breast. " Sounds good, Doctor."Of course, when I got home, I got the usual question.," How did it go, babe?" It was okay, except the doctor asked me if you had ever been unfaithful." Why the hell did she ask you that?" I don't know; she asked me the same question about me." Have you?" Only in my dreams, honey."I could be as big bullshitter as my Fred. I wasn't telling on me, and he sure wasn't telling on him as he cuddled with my sister, Jessica, on Thursday evenings. How do I know? I followed him, and.