OK OK... how about with and without a condom? Like I said earlier, with a condom I can last anywhere between 1 and 2 hours (the trick is to get some tongue action in when yer near the climax... and that counts for licking everywhere, not just the muff). Without a condom, its 30 minutes max, and thats a rarity.
Give me 5 minutes though, and Im always up for it again