Assuming half of Judy's sibs are girls Nick only needs to satisfy 130-140 horny bunny girls! He's a fox, he can do it! We believe in your yiff power Nick P Wilde!
This could actually be the prompt for a really great story. I don't know how bunny reproduction really works, but I could totally see porn logic saying, 'Bunnies like to share really great boys, to spread the genes around the family'. Extrapolate that to Zootopian levels, and you have Judy explaining that yes, Nick really does have to satisfy a few dozen bunnies at the same time. Funny, cute, potentially sexy, and a little weird. ...screw it, I'm going to give it a try.