He can't

My arousal soon boiled over, and I lost control. With a scream, I busted a nut into Svetlana's pussy. Sally smirked as I pulled out of her, my goo spilling out. "Rod's not just bigger, but he has more stamina, too."

I merely scowled at her smug satisfaction as I left the room, too frustrated to respond. I was angry, not just at my wife but at myself as well. I had to prove my manhood, outdo Rod somehow. I got back in my car, drove around town, and fumed silently at my situation. About a hour later, I had hit upon an idea; perhaps I buy another penis pump and try some excerises to strengthen my dick? It had worked before, it could work again.

With that, I covertly started researching cock enhancement on the internet again. I found some products - pumps and creams - that claimed to be capable of making my cock bigger and stronger. But they all looked shifty and obscure...