I was a performer back in the days before Viagra (wow, that makes me feel old ), and the dependable guys could get their dicks hard on cue and cum on cue.
The ones I talked to about it in passing basically said that they had always considered themselves horny guys with the ability to fuck for a long time and then be able to pop pretty much on demand.
Mr Marcus often came more than once with me, but he was always able to get hard again and have another strong cumshot.
I don't think a guy has to be really huge to be a good performer, but I think it does look good if he's at least average. But having control of fucking and cumming is a must.
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