The bet! Who blows better? My little stepsister or me?

One of the hottest bets I've ever made. My little step sister flew to Berlin to visit me over the weekend. We both have one thing in common: we love sucking hard, horny cocks and swallowing the hot fuck cream :-) That's why we thought about making a great bet on our favorite hobby. So we invite 2 horny guys and blow their cocks at the same time. Whoever manages to be the first to squirt the cock wins. Just thinking about it makes me so wet I can hardly stand it. The man who first squirts into one of our fuck mouths then probably got the better mouth-cunt. Who can suck better? My sweet stepsister or me?