Paint Job
To be in the moment of a Blow Job, and have the giver-of-head wear one colour lip stick; go down, and up apon the penis, change the colour of lip stick, than once again up and down.
Continue untill disired colours are chosen for your paint job.
If done correctly, the lip stick should resemble paint on your penis.
Last night at that Rainbow Party, I got a Paint Job from your mother.