It wasn't a surprise to me when my father in law finally admitted he fancied the pants off me. I'd seen the way he'd looked at me sometimes over the two years I'd been with his son, the last five months before he died, as his sons fiancee. Mike was 47 when he died in June this year of cancer, but he'd been ill on and off for three years. In April he was told he wouldn't see out the year. As his wife had been killed in a car accident only months before he first found out he'd got cancer, he quite openly told me once, he'd not had any sex since then. After been given his life expectancy in April, he phoned me and asked if I could call by on my own. As I've mentioned I'd known Mike had lusted after me in secret, and thinking instinctively I went round without a bra or any knickers on. I was right. Mike asked me if I'd consider helping him ejaculate by me letting him see me naked. I did more than that.
Lay on his bed naked, I let Mike who was also naked, put his head between my legs and lick me out. He didn't think he could hard because of the drugs he was on, hence him asking me to help him masturbate as he licked and sucked on my pussy and clit. He was wrong, Mike did get hard and as soon as he let me know his cock was erect, I made him lay down on his back. Very slowly facing him, I mounted his cock and began to gently fuck him. Mike being Mike said "Look if I die being fucked, then so be it, so please, fuck me!". With his cock seemingly growing bigger and harder in my pussy, I began to fuck him for real as he reached up and started to play with my bouncing breasts. It was me who came first, my pussy gripping his cock as my orgasm built up and then flowed through me. Mike's cum spurted up my pussy not long afterwards, filling my hole with his seed. After I'd climbed off his cock, we lay together and I listened as Mike cried softly, his head on my chest. Before I left his house, he made me promise never to tell his son. I never will, but it has been so so hard keeping our secret, especially as i'm now preganant.