It all depends on the individual. All my life I can never be satisfied with one pop. When I was in college, my GF and I would have sex, and I would normally get 2 pops within 1 hour, and I'm done. Then I got married, and wasn't into sex with ex-wife, so I pop once, and I didn't want any more. Now I am dating an amazing woman, and I can't stop cumming! When we first started dating, we had insane 4 hour sessions, where we have sex, cum, rest for 20 minutes, back again, repeat. For some reason, lately, we have shorter sessions (around 2 hours), and we skip the 20 minutes rest completely. I somehow trained my body to skip the refractory period, and stay hard after cumming. It's weird, but she is really happy about it. Last tuesday, she made me come 4 times in 2 hours. I was exhausted.