keeping them all happy at the same time, I almost always reach a point where I think to myself "Man, it must suck to be that MC
It's easy to get it up when you're in a hotel room and it’s just you and a horny catgirl looking all cute and innocent. Any idiot can perform then.
Alphas don't have those luxuries though. There are going to be times when you feel like shit. You're sick and you've had the stuffing beat out of you all day. You smell like shit because you've been crawling through the muck all day long. You're beaten, bruised, hungry, and tired beyond all belief. It's hot, muggy, and the flies are biting. The only thing you want to do is crawl into your lair and be dead to the world for a week. But you can't, because one of your harem needs a taming and there's a feral to deal with. You're going to have to be able to get it up in those situations and perform.
In that state you're going to have to get it up and suck it up enough to tame your girl and show her she did a good job. Then you're going to have to get it up and do it again, only this time with a feral who hates you, who wants nothing to do with you. A girl who doesn't want to screw, one who wants to rip your cock and balls off and shove them so far down your throat you choke to death on them. You're going to have to tame her and do it right.
That's when we find out if you're a real alpha or some wannabe little punk.