[Curvyguy]

Welcome aboard,

You do realise that compromises will have to be made as developing large breasts isn't that conducive to keeping all male function.

I'd look at the topical regime thread as lots of us are doing their own version of it and if you find the right combo for you, it definitely does work.

Good luck with your regime.

What male function(s) are likely to diminish or disappear?

In general sperm count drops your semen will be more clear instead of cloudy due to lack of sperm cells. You will suffer with erectile dysfunction, etc. 

Using topical creams with the phytoestogens in will be a lower dosage and take longer to develop breasts but even with them fertility will be impacted it's the nature of the beast.