I know now, as I knew then, that I should have politely gotten up and excused myself at that moment. I should have gone to my bedroom, eliminated the ...emptation and masturbated in private. But I didn't. I would like to claim I do not know why I did not get up at that moment; but the truth is I was very, very aroused by this whole perverse situation. Despite all logic and reason to the contrary, I slowly reached down as Robert watched, spread my thighs ever so slightly, fingers between my legs,. I didn't.His hand slowly caressed the side of my braless tit before carefully finding my erect nipple.I broke our kiss just long enough to moan, "Oooh, that feels nice."Harris correctly interpreted my response as permission to touch me anywhere. His hands were all over me as we necked and pressed against each other. I moaned encouragement. I slid my hand between us, grabbing his upper thigh before slowly finding his erect penis. The bulge in the front of his trousers was much larger and thicker. She was charmed by his easy-going and open admiration. He seemed to care about her and what she thought, in spite of knowing her only a few days. She thought of what must have lead up to his depositing such a lot of sperm on her panties; thought of how her knickers had probably felt so pleasureful against his hardness. She imagined him pressing her scent to his cheek as he listened to the sound of their lovemaking just the other side of the thin door.And finding the evidence of his arousal in. We had a little small talk... then she broke the conversation wide open. "So, I guess you were stopping by for quicky or a blow job..." Well, you know me", I laughed nervously. "I want you to fuck her like a whore right in front of me" the boyfriend said. "Trish is a whore. You made her a whore and popped her cherry. She told me all about your cock and how like to eat her after you cum."For the record, I might have done that once in the 5 years we dated... but now I know it is what she liked..