>>18870169>How would they?Presumably in a similar fashion to how humans fantasize about fucking something they can't.
>as they don't have a similar form of sexualityYou can imagine whatever you want, but until anything's confirmed either way, you know about as much as anyone else does on the topic (i.e. that pokemon are left at a daycare and you pick the eggs up from there). A lot of it is left up to interpretation and speculation, because the issue is deliberately skirted over and will probably stay that way.