I was not surprised when I felt her clinch around me and cry out with another orgasm very soon after the last one. I knew I was not far at all. But I...still had a surprise in store for me. “Oh Charlie, my arse, PLEASE, fuck my ARSE!” She panted, her breath ragged. I slid out of her glorious pussy, my cock slick with her juices. I had a bottle of olive oil on the table, which I grabbed. After pouring a good-sized dollop on my fingers, I began to rub her pretty rosebud with my fingers as she. "Oh my gosh, Trev...you startled me," she said, "Are you jacking off with my panty?" She looked absolutely delicious...hair done perfectly, makeup applied tastefully, and bright red lipstick. She was totally naked, and her full breasts swayed as she walked and spoke. "You said I could come over any time I wished...just thought I'd test the invite," I said. She smiled, walked over and sat on the bed. "I see you've checked my outfit...what do you think of it?", she asked with a smile. I told her. .. I think it bit me"."It is not toxic or dangerous", Cathy quickly said as she replaced the 'bug' into its box and applied an ointment to where Alice thought the bug had bitten her. The ointment took away the slight sting and the matter was then forgotten as the two women occupied themselves with other activities until the men returned some hours later.As they sat down for the evening meal Cathy mentioned how Alice had thought the 'matting bug' had bitten her. "Oh! When was that?" her brother. Suddenly I'm snapped out of my fantasy. I've been so busy staring at your breasts that I don't realize that you're staring at me. I also realize that all this time I have been stroking my hard cock through my jeans and I think you can see under my desk. You just look at me with absolutely no expression. I quickly pull my hand away from my crotch and look around. It doesn't seem like any one else has noticed what I've been doing so I look back at you. You are still staring at me with the same.