Maybe if they toned it down a bit it would probably look good?
Not "alot" of women have a natural full C or D cup. So the girl who is an A or small B and gets an upgrade to a big C or D, or even DD, is staying within a certain accepted parameter of what looks good, right? (I'd agree with this, though I don't like them, it doesn't look "bad" at that size).
So if these guys have been training their whole life and maxed out at say a 16 or 17" arm, if they did an acceptable cosmetic implant, to give them say 20" arms, this would probably fit into the same category. (Not alot of guys can ever acheive 20" arms, but it is certainly not something that stops traffic).
So we have 2 genetic underachievers in specific areas (tits and arms), upgrading to an acceptable looking larger more attractive size (at least as they perceive it).
These guys are ok, they just didn't get the right size implant. That can be fixed pretty easy.
They showed a guy on a cosmetic surgery show that had his biceps done, they looked natural, could never tell, except that he didn't look like he worked out.
Chicks probably dig him and think he has big guns though when he goes out