Here again i brushed my mil’s butt with my erect cock. Suddenly she caught hold of my hand and told that she was watching me every minute from the m...ment i came home and peeping on her boobs and butt. She asked whether i liked her huge tight tits. I was stunned. She took my hand and placed it on her pussy over the pavada. It was really hot. I embraced her and started kissing her on her neck, ears and lips. She was biting my lips. Her one hand went down into my lungi and started pressing my cock. That Saturday night, Connie surprised me by calling me at home. She said that she was bored, and asked me if I could come over to take her out for a Coke or something. I drove over to get her, and then we went to a hamburger joint and ordered two Cokes and a large French fries. We sat inside the crowded restaurant, talking about school and other safe topics.Neither of us brought up anything about what she had told me on Wednesday. Just when we began to run out of safe topics, Connie came out. We took off at a trot. I stayed beside my sister so I could watch her chest quiver to and fro; as I knew it did when she walked fast. We walked a little, and she kept looking at me strangely. She had a half smile on her face. We got to a fence we could lean against and look over. There, I finally looked at her in full light of what had Just happened. She turned and put her back against the fence and said "What the fuck was That? I can't believe we just did that" So it Had happened, i thought. I. 18 units." Okay." With the same units, our sun is 13% less massive, but we're 20% closer. Our sun exerts 1.71 units of tidal force on Aina. Solar tides are stronger here." Okay." Mahina is over a million miles from Aina, and much more massive than Earth's moon. Net effect is a slighter weaker tidal force. Mahina exerts 1.71 units of tidal force on Aina." Huh? Exactly the same as the sun?" Yes. Neither dominate. And the Mahina-Aina orbital period is 188 Earth days, much longer than the 28-day.