“Don’t stop,” she whined.“I didn’t”, Derek said almost indistinctly with a nipple in his mouth“Not you honey”, she replied. Derek bewi...ldered was over her shoulder that Marcus was naked.“I'm just getting started,” Marcus said.Derek’s mouth opened wide and the nipple got out of it, while he gazed as Marcus entered the girl on top of him.Priscilla felt another jolt, stronger this time, sweeping across her body as she felt pussy being stretched with what felt like a soda can. It felt electrifying.. “We both have career goals and seem to know what we want out of life,” she said.“The next several months will be filled with the fun part of learning things about each other,” she mentioned.“I agree, a lot of questions and answers.”“One way to make our relationship last is to be able to give each other some space. What I mean by that is to go from not knowing each other to spending most every day together is quite a change in our lives. How can we balance being a couple without smothering each. .. why?" Just an idea I had for a little collaboration," I grinned.My sister appeared on the verge of saying no, when Chrissy stepped in and saved the day."Why not, Eileen? Give it a try. It should be fun."Eileen sighed, but then a smile of resignation crossed her face. "Okay, Mr. Piano Instructor. You win. Let me see what I can do." Thanks, Eileen. And thanks, Chrissy," I said with a smile. Sometimes, peer pressure is a good thing.They went downstairs; I stayed behind, but listened carefully. All those contractions and the way my cock rubbed along Katie’s inner thigh, coupled with the delightful sights and sounds of my girlfriend’s sexual ecstasy soon had me ready to shoot her pussy full of cream again. Katie climaxed again when she felt my cock throb and spurt in her depths.We had to uncouple to move to any other position. When I pulled out, Katie finished rolling onto her back and spread her thighs. The invitation was clear. I moved over her, placing a knee on either side of her.