User blog comment:Cococrash11/Hollows breeds with humans/@comment-1752519-20100503203642

ill put my opinion, there is no real proof to back up any side here, nor a statement that clears it up, so saying "because i said so" or "its that and period" is absolutely pointless,

for starters, arrancar ar spiritual beings, doesnt that mean their SOUL is their body? also meaning ishida didnt have to say "they are physically the same as shinigami", since their soul is their body, but what i just put about ishida is just crap, also the arrancar gain shinigami like characteristics, so it is at least logical to assume they have sexual organs and probably can use them, but it is much harder to say if they can just use them to have sex or to breed (ill put some more "logical" argument")

it has been stated, arrancar can eat, drink, sleep, wheter they have to or not, meaning since they probably do have sexual organs they probably CAN use them if they want to, just like they can decide to eat or drink, but like i said it is almost secure they do have them and that they can use them, but it is harder to tell if they can breed,

like blazeuchiha said, why does szayel have a brother??? another explanation apart frome the arrancar being able to reproduce would be that they where "adoptive" brothers or something similar (altough i dont know why an arrancar, specially one as heartless as szayel would go by with an "adoptive brother", but this IS just a crack theory so you can disregard the grantz brothers part)