This is the version I usually sing:
Now this is number one and I'm buttering up her bun...
....this is number two; down in front, I'm coming through!
....this is number three, fancy frigging, fast and free...
....this is number four, and I'm lying on the floor...
....this is number five and I'm feeling fast alive...
....this is number six and I'm learning brand new tricks...
....this is number seven and I'm on my way to heaven...
....this is number eight and I'm standing at the gate...
....this is number nine and I'm feeling mighty fine...
....this is number ten,roll me over and do it again...