<human>: My kitten is about 6 weeks old and ever since he peed on our futon the first time, he keeps on going to the bathroom in the same spot. 

We're thinking we need to get some sort of repellent to prevent him from even going near the spot, but we don't know exactly what to do/other ways to prevent him from going on the futon. I try to discipline him and teach him not to do it by grabbing him by the scruff and repeating "no" to him while he's near the spot right after he's done it, and then moving him (and his mess, if possible) to the litter box in the bathroom to show him where to go and shutting him in there for a little while. We do have the litter box for him in the bathroom, which he uses most of the time, and that I clean out very frequently whenever I go into the bathroom. I haven't yet changed the litter for fresh litter yet (it's been the same for about a week and a half, since we got him the litter box), but it seems generally clean. Here's another question: how often should we be changing his litter?

My boyfriend looked up some "cat psychology," and found something like it's his way of telling us he misses/needs us because we aren't available all the time (work and whatnot) and he's the only pet we have. I highly doubt this though, because the two most recent times he's done it, I've been in the room with him (it used to only happen when we weren't in the living room). 

So, I'd really appreciate any advice you guys could give on how to prevent it and discipline him when he does do it.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: My kitten pees on the futon, we need to find a way to get him to stop and discipline him when he does do it.