I'm not fixated on fucking as the best and or only source of pleasure. I love working a cock, and working a big one is just more ... something. It enhances my pleasure and is visually a turn on. I love to minister orrally and with both hands. Wrap my breasts around it, and with oil, and maybe some ice. So, yes, a dick could definitely be too big for pleasurable fucking. The same would not be too big for me to take a lot of pleasure, uh, in hand. And if all the "big guy" wanted was just fucking, count me out. There's (or at least can be) a lot more to sex than just fucking. It might be analogous to how you guys, who like tits take more pleasure from fondling, sucking, stimulating a pair of nice double handful D-cups over doing the same things to an itty-bitty A-cup pair. From my days as a stripper, I know what you like.