
Unfortunately, dick size does matter.
Sure toys help, but he's obviously a bottom, and small dicks don't make him feel good.
Remember the male gspot is at least 2-4 inches deep, and you don't want to just tap it, but gave it rubbed against; which means a minimum of 6-8 inches.
(While the average gpot is 2 inches inward, some are 4 inches inward. And for every 2 inches, you add on 4 inches of rubbing stimulation. So 2 inches inward = 6 inch dick, and 4 inch inward = 8 inch dick.)
Sex isn't just about hitting the gspot, otherwise humans wouldn't need dicks bigger that 4 inches at max.

I'm not really talking about his preference for big dicks tho. Once he finds out about his bf's dick size he essentially ghosts him and acts like their relationship thus far was nothing when the bf seemed quite sweet just because he had a small dick. Even if they weren't sexually compatible and he's dealt with this a lot, it was a crappy move.
He was over there preaching to his friend about getting to genuinely know someone before putting out, yet once the bf had a small dick, he cut all ties and seemed more upset about his dick than actually breaking up with him. He mentions it a little on his blind date about not wanting to get attached and finding out he has a small dick, but you'd think after striking out so many times he'd change his methods a bit without compromising his morals. What's the point of taking three months to get to know someone if he isn't actually going to get attached to them bc he's scared they'll have a small dick?
Tbh, his whole issue of bf's with small dicks could have been changed a lot sooner with a hand job a couple weeks into dating instead of waiting over three months and going straight from only kissing to sex. It's still early on in the story and it has pretty art and potential, so I'm hoping we see more depth in his character, but so far I'm not his biggest fan.
So far I really like the top, but I'm not too sure about the bottom. He feels kinda shallow...