My sister and I continued our incestuous affair, taking every opportunity to enjoy our illicit coupling. Belinda continued to visit my bed, rarely sleeping in her own. She would go to her room each evening and spend a few minutes under her own covers, just to give the impression that her bed had been used.
We explored each other's bodies with fingers and tongues, rapidly adding to our repertoire of positions as we discovered new ways in which to bring each other pleasure. I adored the taste and texture of Belinda's pussy, and would quite happily tongue her syrupy centre for what seemed like hours at a time. In turn Belinda would lovingly suck and lick my dick, bringing me almost to boiling point before ceasing her oral attention. This would drive me almost insane with desire for her, and would inevitably lead to a hot, frenzied, forbidden fuck.
I would usually cover my beautiful sister's face or breasts with gouts of viscous spunk, and I would revel in her ability to appear demure and dainty at one moment, only to turn into a wanton slut the next. My cock would be unflagging; staying rock hard as my sister grinned lewdly at me through her coating of cum. Thick strands of my semen would cling to her black hair, while drops of the stuff dripped from her chin to spatter onto the gentle upper slope of Belinda's tight breasts.
On more than one occasion I pumped my seed deep into her belly, an action fraught with risk, but one that Belinda relished all the same. She would cry out with pleasure and love when she felt my prick erupting, flooding her womb with my outpouring.
As the days passed and became weeks we became bolder. Inevitably that boldness was accompanied by recklessness, we began to take risks, stealing kisses in the kitchen with dad and Aunt Felicity mere feet away in another room. We soon progressed to fucking in the summerhouse at the bottom of the garden, clothed at first, but eventually stripped fully naked. Dad was more often than not at work, but Aunt Felicity could have walked in on us on any number of occasions.
The risk of discovery only served to heighten our lust and I wondered what the look on our aunt's face would be like if she were to catch us in the act with Belinda knelt on all fours and me fucking into her from behind, both of us gloriously naked.
I didn't realise it at the time, but Aunt Felicity had in fact spied my sister and myself as we fucked with such wild, reckless abandon in the summerhouse. She could have chosen the moment of discovery to interrupt us as we fucked, but Felicity had plans of her own for us. Plans that became evident to me only a short time later.
***
'So how was your day?' Aunt Felicity asked that evening when all four of us were sat around the dining table. It was a gloriously warm Friday evening; Dad was home from work and had the whole weekend free.
'It was great thanks, aunty,' I replied, and looked across to Belinda. I thought back to that very afternoon, once again in the summerhouse, and I fondly remembered how my lovely sister had eagerly swallowed my spurting semen when I let fly onto her tongue. We had spent more than an hour licking and sucking each other, with Belinda eventually opening her thighs and offering her sweet, honeyed slit to me for fucking. The finale being when Belinda had licked her juice from my gooey prick, and I had come into her mouth.
Belinda smiled demurely back at me, butter wouldn't melt in her mouth, and she looked the picture of innocence as she sat quietly and lifted tiny forkfuls of food to her lips, a sly, feline smile on her pretty face.
'Did you spend all afternoon in the garden?' Aunt Felicity questioned, and I noticed Belinda stiffen slightly out of the corner of my eye.
'Yes, we did,' I replied, trying hard not to blush. 'The garden and the summerhouse. We tried sunbathing but it was just too hot so we decided to read for a while. The summerhouse is so cool inside.' The lies tripped lightly from my tongue.
'Ah,' said our aunt. 'I did look for you in the garden this afternoon, but couldn't find you. You must have been in the summerhouse then.'
'Probably,' I replied, and shifted uncomfortably in my seat. This line of conversation was beginning to make me uncomfortable, and I was thinking desperately of a way out. 'We did doze for awhile,' I added, hoping to deflect Aunt Felicity.
'Well,' our father laughed. 'I wish I could spend my day dozing in the summerhouse, it would beat working.'
We all laughed at that, and I was grateful that the conversation took a turn away from the afternoon's events. As we all continued to chat, passing banter back and forth, I noticed my aunt looking at me oddly from time to time. She had a very strange, enigmatic expression on her face. I couldn't quite figure out what her look meant, but it disturbed me at some subconscious level. I had the feeling that she knew more about what had happened in the summerhouse than she was letting on, and I was more than a little apprehensive when the time came to clear up the table.
'Why don't you and Belinda go through, I'm sure Sammy and I can manage to tidy up in here,' said Aunt Felicity sweetly to her brother. I looked first at my aunt, and then at my sister who just shrugged and grabbed dad's arm.
'Come on daddy,' she said, 'Let's get out of here while the getting's good.' Belinda hadn't sensed our aunt's mood and laughingly pulled our father from the kitchen before any jobs could be thrown in her direction.
There was silence between my aunt and myself as we busied ourselves, tidying up the table and loading the dishwasher. I had just closed the dishwasher door and turned around when I saw Aunt Felicity looking at me with that odd expression again.
'What?' I asked a little nervously, avoiding my aunt's enquiring gaze.
