You kidding man? As long as your average thick.... and at least 4” you should be fine. I also can’t help cumming within 1-2 mins of pumping my gf slash roommate. And I feel so so bad. She got home early one day and I’ve been experimenting with a couple guys out in the country by where I live and my wife walked in on this! She immediately got so horny seeing this insanity that daily me and the neighbor will watch some porn before she gets home so when she does we are both butt naked and horny. And let me tell ya. We do all sorts of good stuff and luckily he can last during sex