When two family members (preferable male) uses a leaf blower on their penis while the other one turns it on, and when the male ejaculates, it sucks up all the semen and then said male holding the leaf blower hands it to the other male, and then sees how much semen the other male can collect in his mouth after blowing all the semen out of the leaf blower.
Me and my friend Jake did the Texas Leaf Blower last night, it was awesome!