I started to slide up and down stimulating me and her clit in the process. She was sopping wet so it slid quite smoothly. Both of our arousal states w...ere climbing as we stroked faster and faster. For the second time that day I pulled back too far and my cock lodged at the entrance of her vagina.Again, with Herculean effort I lifted it up and she hollered, "Stop. Put it back there and push." I didn't do that with Patty." I don't give a shit what you did with Patty. Just do as I say and do it. I wasn't sure what to say, so I just told him thanks. Then I noticed that as we were chatting, he was casually pulling on his big cock. It was now getting even bigger, and he just kept on talking, as he laid his had back and started masturbating in front of me. I was totally shocked. But when I looked down at my own crotch, I realized I was rock hard as well. I guess I figured what the hell, if this is acceptable, might as well join him. So I began to massage my own cock to it's full length. As. As I began to clean her up she wiped some of my cum from her belly into her mouth and began to grin. I quickly redropped my pants with an instant hard-on, and stuck my cock between the braces of the changing table and leaned her to it. She quickly began to suck on the head after tasting the remaining cum on it. I was in total bliss, I never thought this day would come… But it ended quickly as I looked up and saw my wife standing in the doorway. I pulled my dick from our new daughter’s mouth. I then picked out one of her short grey skirts and one of her tight white blouse and slowly put it all on and looked at myself in the mirror and I was looking quite good but was not quite finished yet so I grabbed one of my favourite red head wigs and put it on and with a bit of make up I was nearly done so I went back into my sister's room and grabbed her knee high black leather boots and my look was finally finished. I headed outside to my car and got a couple of whistles from some passing.