“Well then, birth control is simply making sure that one or the other isn’t around during sex. Then it is just for fun, and you already know it ca... be a lot of that.”He continued, giving her tit a gentle squeeze, “Right now, you might have an egg ready, although that happens for only a few days during your menstrual cycle. However, I have no sperm. After the kids were born I had a simple operation that stops them from coming out of my penis. Therefore, I can’t get anyone pregnant.”Sis was. I left my dick pressed between her ass cheeks until it slipped out from the softening.I sneaked over to my bedroom to check on Robert’s progress. As I peaked in the door I saw him at work. Kacie was on her back with her feet straight up in the air. Robert was holding them up and out as he pumped furiously into my wife’s pussy. I watched as he began to moan and pump ever faster, ending with a grunt and soft spoken “Here cum’s number five… baby!” I expected Robert to pull out of Kacie as she is. But then again, what's 'normal' around here?" she laughed."I had some free time today and thought it would be nice to visit for a while. We've not had any time together for a long time now and a visit between best friends is always a good cure for lonliness, isn't it?" Yes, it is," agreed Samantha. "Would you like something to drink?" Yes, I think I would. How about some Pink Lemonade?"That was all it took.Heidi walked over to her best friend, took her hand, and the two of them headed towards. Dave did a very simple hand clench as he nodded and whispered "yes" - he didn't do any hand pumps or any hoorays. He then simply walked to Kevin and put out his hand.Kevin congratulated, "Good round, Dave. You were too much for me today. Good luck in the next round." Thanks, Kevin."Dave then turned and shook his father's hand. "Thanks, Dad."Dave, his father and mother and Kevin walked back to the clubhouse together. Mike was standing on the balcony waiting for Dave. Dave simply smiled at Mike.