I was secretly excited for him and I wanted to find out whether he'd put my teaching to good use. I made him tell me all about it the next morning, an... it sounded like he had. I'd wanted to hear Fiona's side of the story too, but for obvious reasons, I didn't ask. I heard they slept together a number of times after that.Although our default activity did remain masturbating together, our sibling benefits did evolve in two other directions.Firstly, we would increasingly kiss on the lips. It. Rainey plucked at a stray thread on her comforter but didn’t meet Karen’s eyes. ‘I, um, he’s kind of…’ ‘He’s kind of, what?’ Karen urged. ‘Mentoring me.’ Silence. Rainey glanced up to see Karen standing perfectly still, a bath towel in one hand, a bottle of shampoo in the other, and a look of disbelief on her face. ‘Okay, okay…this is way too much for me to take in right now. I…you…this calls for a shower,’ she said finally. ‘I’ll save a stall for you and I’m giving you five minutes to get. "I love the snow, it’s so pretty. How did you get here tonight? Can I take you home?" I chatter, eager to be out of the cold as soon as possible. "I had Amber drive me here from work so that I could ride with my sexy woman," she says smiling. I smile at the eager look on her face as I unlock the passenger door and open it so that she can slide inside. I hurry around to my own door and slide inside. "Give me a moment and I’ll get the heat going in here," I say, trying to keep my teeth from. Our soft, slow kissing a counterpoint to our hard bodies as they slammed together, the base of my cock pressing onto her clit. The bed became our island as we rolled across it, turning each other, moving our bodies to increase our pleasure, so she could feel me deeper, exploring each other as we made love. Pulling her round, she turned and raised that perfect ass to me, her knees on the bed as I took her from behind. I moved back from her slightly so my only contact was my hardpoint cock.