It had started out like any other afternoon.
Sora had told Riku that he needed help with his math homework. Riku had agreed to walk with Sora to his house after school. Once there, Sora told Riku that he had inconveniently forgotten to tell him that his parents were out that afternoon, and wouldn't be back until late. Riku scolded Sora for being irresponsible, and then proceeded to punish him accordingly; by ripping the button's off his school shirt in a hurry to get to the tanned, supple flesh underneath while whispering awfully dirty things into his ear and gripping his ass roughly in his strong hands.
Sora had to reason with himself, that this honestly wasn't their fault. Yes he had been irresponsible for forgetting to tell Riku such an important fact (though he honestly wasn't regretting that now that Riku had a good grip on his thighs and was using that grip to keep them firmly wrapped round his boyfriend's waist) and yes, he may have planned this on some level (not this per say but this in general). But what did his parents really expect?
They had known he was gay for some time and though he hadn't told them about Riku, he really didn't know how they hadn't suspected it yet. Riku was over every other afternoon, always helping with 'homework'. Even when their exams were over and summer vacation was fast approaching, his parents always turned a blind eye, patting him on the head and telling him not to push himself so hard. But at the moment, Sora was doing exactly that: pushing himself hard back against Riku's thrusts that is.
And seriously, what parent really expected their teenage boy, who was exiting that awkward puberty stage and entering the time where everything seemed to be a sexual innuendo, to stay home alone on a Friday night with no homework and just sit there quietly. No way. Sora had enough built up energy to last him…well…only a few minutes more at the rate Riku was pounding into him, his head thrown back against the couch arm and his legs splayed as wide as he could make them (it was a known fact Riku liked it a lot when his legs were spread wide).
Let's keep in mind that all this reasoning was done long after his parents had arrived home and Riku had 'left' only to sneak around the back of the house, crawl up the pipe and through Sora's window so he could join him for some greatly-needed post-fuck cuddling. So Sora reminisced about their little roleplaying session and simply forgot about his parents and lost himself in the soft, sweet scent of his beautiful boyfriend's breath, as it was fanned over his face again and again, as Riku slept off his inevitable exhaustion and Sora simply laid awake, tired as hell but not wanting to miss a second of the serene expression etched onto his boyfriend's smooth features.
No…none of this was really their fault.