Stepdad discovers daughters lust

Over the years, Mark and his stepdaughter Bianca had a very flirtatious relationship. Bianca would often sit on his lap in front of her mother, and intentionally wiggle her arse, trying to make him hard, which almost always worked and lead to some awkward moments when his bulge would be exposed for all to see when Bianca climbed off his lap.
To his credit, Mark resisted the temptation to take things further for many years. That is not to say he didn't take any opportunity to see her naked, to the contrary, he spent many hours peeking through windows as she showered or changed clothes. He would often stand in her room at night, jerking his large, rock hard cock, as she slept, watching her tits rise and fall as she breathed, taking in the sight of her nipples pressing through her shirt. When it was hot, Bianca would often sleep on top of her covers, with just a t-shirt and panties and Mark was then able to see her hot young cunt outlined by her panties and her mound of pubic hair forming a bulge on top of her pubic bone. The site drove him to a frenzy and he would explode on the floor of her room, but sometimes the force of his orgasm shot his cum far enough to land on her bed, sometimes on her.
Not long after her 19th birthday, Bianca found out her boyfriend had been fucking her best friend. She had been open with Mark and her mother about all the intimate details of their relationship, telling them about how hard she would cum when he ate her cunt, how he had an amazing tongue and loved licking her clit for hours, giving her multiple orgasms and about his nice cock and how nice it felt in all the different positions.
Bianca was so upset about her best friends betrayal, that her mother gave her a couple of sleeping pills to calm her and to help get her to sleep. Mark went to her room to comfort her and found her drinking vodka straight from the bottle. He knew that combined with the pills, Bianca was going to be unconcious, and would need watching to ensure she would be ok.
As Mark's wife headed off to her nightshift job, he assured her he would keep an eye on Bianca, which put her mind at ease that her daughter would be ok. What she of course didn't know, was Mark's mind was already picturing the opportunity to see Biancas body exposed up close. He had of course seen it from afar, even sneaking a peek once at her being fucked by her boyfriend, but finally here was an opportunity to be right with her, to touch her and smell her, maybe even tadte her, and as his wife drove off his big cock was already straining for release. This was going to be good, but he had no idea how good it was going to turn out, no idea at all!
As he returned to Biancas room, he found her passed out on top of her bed, fully clothed, but breathing fine. He figured she would have no memory of any of this in the morning, so he tentatively began undoing the buttons on her shirt. As he pulled the front of her shirt open, her beautiful firm tits were right there and he knew if he could get her shirt and bra off, he would soon see them exposed, up close in all their glory. He gently sat her up and got her shirt off and after a brief struggle with the clasp of her bra, got that off too, and there they were. Still sitting firm, her aeriolas a dark pink with her pink nipples at the center quite small but almost begging for his mouth. He reached his hand out and gently placed it on her left tit, feeling it's warmth, feeling it rise and fall as she breathed. He moved his thumb to brush her nipple, feeling it give softly to his touch and then, after making sure she was fully out, he lowered his mouth to her young flesh and felt her nipple against his tongue. Alternating from one tit to the other he was in heaven, tasting this forbidden fruit. He began sucking on Biancas nipples and suddenly was shocked to notice they were getting hard! Omg he thought, her body is responding and he continued to suck ner nipples and flick across them with his tongue, circle around them, just like Biancas mother liked him doing. He wondered if her cunt was responding the same way and getting wet and decided it was time to remove her skirt and panties too.
He pulled them both down and over her feet and she was finally fully naked and exposed to him. She had a neatly trimmed patch of dark brown pubic hair sitting above her cunt. Her cunt lips were dark, unlike her mothers whose were quite pink, but like her mother, Biancas clit stood quite proud.
Mark bent and inhaled the scent of her cunt and gently stroked her furry mound. Gently, he opened her legs, giving himself full access to her cunt. He began to picture the memory of seeing her boyfriends cock pistoning in and out of this same cunt and he could feel a dampness in his underwear from his leaking precum and decided to get naked too. He climbed on the bed between Biancas legs and lowered his mouth onto her cunt and began tasting her. He couldn,t believe he was finally tasting this cunt he had lusted over for so long. He licked up and down her cunt lips and pressed his tongue inside her glorious hole, licked and sucked her clit and then put his finger inside her. She was so wet and hot inside and his excitement was building to a point where he thought he might cum at any second. Knowing this and not wanting to waste anything of this opportunity, he positioned himself over her, holding himself up with his arms and began to press the head of his swollen cock into her cunt. At that moment however, he suddenly thought, if he came in her, she would know he had fucked her when she woke up and knew he would have to cum on her instead and he couldn't risk even a few pumps of his cock inside her tight hole, so reluctantly he slid into her fully just once and pulled out and began humping her cunt lips. Within just a few moments he couldn't hold back any longer and began pumping jet after jet of hot creamy cum over her stomach and furry pubic hair.
Exhausted, he lay next to Bianca, catching his breath before he would get up and find something to clean her up with to hide the evidence, then put a shirt and panties back on her.
He lay there, thinking about her taste and making comparisons with her mother and closed his eyes for a second, or so he thought it would be.
He woke with a start and panicked for a split second. It was dark still. What time was it?
All this passed through his mind in a fraction of a second before he realised there was a hand on his cock, stroking it. Then he heard Biancas voice as she said "I always wondered how this would feel".
Mark began to stammer Biancas name and was about to try and talk his way out of the situation, when Bianca leaned over and kissed him, then took his hand and put it between her legs. The evening light from the night before had gone and it was now the dark of the morning. Bianca reached out and turned on her bedside lamp and looked down at Marks cum on her body and said "I want some of that inside me. I want you to fuck me and cum inside me. I've always wanted to fuck you."
Mark needed no second invitation and climbed between her legs again and put the tip of his cock against her cunt lips. He could feel how wet she was instantly and pressed his cock harder against her lips, feeling them spread around his cock head and begin to swallow his engorged shaft. Bianca moaned as he sunk his cock as far as it would go inside her and they just lay there a moment grinning at each other before he began sliding in and out of her wonderfully tight cunt. She said"I bet I'm tighter than mum?!" Mark said "tighter, wetter, sexier. I can't believe I'm finally fucking you instead of jacking off outside your window".
Bianca laughed and then drew her knees up and told Mark to push her legs back over her head, she wanted him deeper.
They fucked in several positions before Mark said he couldn't hold it any longer, so Bianca lay on her back again and guided Marks cock back inside her. Within a minute he was ready to explode and told her "I'm cumming", and with that he began to buck his hips against her like he was trying to drill right through her. Bianca could feel his huge cock pulsing inside her, filling her with spurt after spurt of hot wettness and it sent her over the edge and she began to have an intense orgasm that took her breath away and made her head swim.
Marks orgasm was the most intense he could remember and it seemed it would never end.
After, they lay together, Marks cock slowly shrinking inside her and Bianca looked at him and smirked. He asked what was funny and she said "you know I've still got my school uniform, tomorrow when mums at work I can put it on for you".
Mark laughed and said he might only last a minute if she did that, but he couldn't wait.
At that they looked at the time and knew they had an hour to clean up before Marks wife arrived home from work.
Bianca said "mum will have a quick shower and go straight up to bed when she gets home. I want you to fuck me later when shes in the house, it'll be super kinky". "And risky" said Mark, "just like when I used to sneak in your room to jack off while you slept!"
Bianca said "I want to be so fucking dirty for you, I'll try anything with you."
With that, they kissed and both headed for the shower, both wondering how fine they could cut it with Biancas mums imminent return from work.