The fruits will both be male too 🍆

They always start with a few boys, just in case there is already another plant around with the resources to produce fruit. They tend to do the same when they start dying off - as far as zucchini are concerned men are cheap!

I found with only a couple of plants that having a male and female flower at the same time could be difficult You can put the stamen of a male flower into a plastic bag in the fridge for a day or two and use it to pollinate a female flower later. If you don't have enough bee action around you might need to hand pollinate even when you can get the flowers synchronised.

I haven't planted zucchini this year as I'm winding the garden down in anticipation of the place being sold next year, but I did pick up a bunch of zucchini at the food cupboard this morning. I can probably count it as a return on the zucchini I donated last year when my plants were producing.