I like this style because it's kind of a more realistic take on giant cock futa (besides the issue of getting an erection without passing out). These massive wangs would be far to large for any partner to reasonably "take" and would likely be mostly useless for sex, the futa or her partner could stroke it or lick/suck the tip, the futa could give herself a boob job, but in general in futa and male pairings the more reasonably sized male would have to be the one doing the fucking as he could actually fit in his partner. There are a lot of futa (and hentai in general) artists that seem to think humans are infinitely stretchy, and although that's a fun fantasy it is certainly very much divorced from reality.