>>2156688As
>>2156690 stated for the most part.
To describe a girl as "breeding material" means you not only find her sexually attractive and would like to "tap that", but that you actually wish to successfully (and likely repeatedly) combine your genes with hers and reproduce.
It means you view that female as not only something to fuck, but something you actually want raising your offspring (for example a hot chick with a personality you can't accept may be fuckable but not breeding material to you). It's the highest compliment your biological drives as a living entity can give.
