‘i….i’m sorry, dear’ he stammered, ‘here it is’. The head of his big cock slipped easily inside of her, but the fierce attack she had been...hoping for was not forthcoming and she demanded, ‘fuck me harder you useless piece of shit, what do i have to do to show you what i want, draw you a fucking picture?’. That did it, the doctor wasn’t going to take that kind of words from anyone, not even his patient, and if she wanted a hard fucking, well he was going to make her wish she never thought of in. .I was buzzing real good! So I put on 1 of em, my dick got so hard it nearly tore the dainty things. Let me tell y'all, it turned her on so hard & she was breathing so hard I thought she was going to hyperventilate, thought I was going to also. Anyway on with the story, she got me wearing panties for her. More on that later, I got detracted. After we had looked thru the dirty mags, it was time to pop a video in the vcr. We would spread a large soft blanket on the floor in front of the tv, start. .. a rub against the cloth of her thong. So gentle. So impossible to ignore. The little marble sewn into the inside of the back of her thong pressed against her anus, teasing with every step. Tap, a bit of a pause, tap, glide. So impossible to think. Just follow her sister Linda's steps, let her hand gently guide their direction. The shimmering blue cloth disguised the spot of wetness continually dribbling from her pussy. Her nipples were taut, jutting out, continually aching. So were Linda's. As a test of our new relationship, I left one long strand sticking to the mirror in such an obvious spot that she wouldn’t be able to overlook it and leave it to be found by Donna.As I left the room, she gave me a wicked little conspiratorial smile and a grope of my recently pounded crotch, in passing.My return to the living room went completely unnoticed, at least I thought so. Everyone was sipping their punch and laughing animatedly at nothing in particular.Laura rejoined us in a few minutes.