All persons entirely ficticious.
Pete had developed a strong infatuation on his mate Mick's mum. He'd known her from being in junior school with Mick, when they had became firm friends, and spent most of their childhood at each other's houses.
She was kind to him, and great fun. She was like a favourite auntie to him as a kid, and he became like a step son to her. She was pretty too and always dressed nice, unlike his mum. She smelled so, well so fresh, alluring. It's a crap description he knew, but it's all he had as a kid.
As his hormones kicked in, and girls came on the scene, often double dating with Mick, she would tease them and embarrass them by giving them "the talk". Making sure they knew the facts and not the myths to keep them, and any young ladies, out of trouble. Something she was well versed in having become pregnant with Mick at 18.
He couldn't be sure now, but if he was pushed Pete would say it was these 'birds and the bees' chats that perhaps developed his fondness for her in to a harmless innocent crush.
Katy was married to Mick's dad Tony as they grew up, and Pete and Mick had often heard them argue and Tony get angry about her being chatted up by other guys at the pub when they went out for a drink. Tony was obsessed that Katy was cheating on him, even though she wasn't. Or at least the lads didn't think she was, and she always claimed innocence, but it was clear she had many male admirers.
In the end it became too much for Katy and she divorced Tony anyway when the lads were around 17 or so. She grew fed up of the constant accusations and fighting. Pete discovered he was pleased about this, as he really didn't like Tony shouting at Katy. And neither did Mick.
There were a few boyfriends or dates thereafter, but none of them really lasted. She didn't seem interested in a long term thing, perhaps wary of what she put up with from Tony and not wanting a repeat. Or perhaps she preferred to enjoy the single life and play the field, using men for sex alone.
It was when the lads turned 19 that Pete's feelings toward 'aunty' Katy took on a more sexual nature. When he began to really notice just how hot and sexy she was and when his fantasies took a darker turn; to her naked form riding his big cock, as he knocked one out.
Pete had gone to University, whereas Mick decided he'd had enough of the education system and found himself a job as an apprentice engineer local to home.
Pete only saw them during term breaks, and looked forward to catching up with them hugely, but more and more he realised that this was because of seeing Katy, rather than his best mate. She was constantly in his thoughts, but mostly in an explicit fashion, rather than a platonic one.
When he walked in to their home during one such visit, he savoured her hug and affectionate peck on the cheek, drinking in her aroma; his finger tips and chest alive at the contact on her slim body. His fingers holding her hips, her breasts brushing his pecks. His cock tenting his jeans.
He held on a little too long, reluctant to release her, wanting to caress her further.
"Hey, whats with the big hug?"
"Oh, erm sorry it's just been a while since I saw you last, I missed you aunt K, needed a bear hug."
"Ok...well fair enough. I missed you too". She smiled at him with those pouting, full lips and he almost leaned in to kiss them, as enticing as they were. Almost.
"Oh erm, where's Mick?"
"Oh, he's still working, won't be back for a couple of hours yet."
"Oh, right. Sorry, thought he'd be home by now."
"What are you apologising for, you know you are welcome here whenever you like. Which reminds me, have you been home yet? Are you staying at your mum and dad's?"
"No...and well, hopefully not."
"OK, so why not, whats up?"
"I will visit, but to be honest the atmosphere there is toxic, I think mum and dad will end up like you and Tony pretty soon, and every time I visit or stay, I get dragged in to one of their rows, each of them trying to get me on their side. I just don't want to be there. So, I was hoping to stay with you, erm with Mick, if that's OK, I'm only back for a week, 5 nights."
She put her hand on his cheek in a show of affection, stroking her thumb up and down his cheek, her eyes doleful and full of concern. "Oh love, of course you can stay, like I said, anytime." It seemed like a bolt of electricity surged through her fingers down to his core, at her delicate touch.
"Thanks aunt K."
"I think we can drop the aunt bit now don't you? You're a bit old for that, Katy will do."
"OK, but I like aunt K, its makes you more cool." While in his head he was thinking it makes you more alluring, more domineering, more sexy, more attractive. More taboo.
She giggled. "Silly boy."
"Mind if I take a shower while I wait, it was a bit of a trek to get here?"
"Knock yourself out" she replied. And Pete thought that was a great idea, and one he would definitely be taking up.
The house was a large one with three ensuite bathrooms as well as a master bathroom, so Pete had his choice of shower. Katy assumed he would use the ensuite in Mick's room, as he normally would when Mick was home.
Despite being best mates for so long however, Pete felt a bit weird using the shower in Mick's room whilst he wasn't around. It kind of felt like an invasion of privacy. So instead he decided to use the more spacious main bathroom, well wet room really, with open shower.
He stripped, turned on the water, and stepped in to its warmth, letting it sooth his tired, sweaty body. He soon reached for the sizeable slab of meat dangling between his thighs, and began stroking it slowly. His eyes closed and he began to fantasise that Katy was in the shower with him, sucking his cock, then that he was fucking her from behind against the wall, her leg raised on a ledge-come-seat.
He began to talk as his visions grew more vivid, more wild and erotic. "Do you like my big cock aunty K? Mmm...do you like how it feels in your pussy? Yes aunty K ride my cock...I wanna fuck you so hard...I wanna claim your cunt with my seed...would you like that aunty K, do you want my seed in you?"
Katy realised that Pete would probably want clean towels, rather than use Mick's used ones. So had gone to her son's room, knocked, and got no answer.
Confused she listened intently, only to realise that the sound of flowing water was coming from somewhere else. The main bathroom.
She wandered off to the other side of the house and was just about to knock on the door to tell Pete she would leave clean towels outside for him when she heard talking.