houdini handjob
When you beating off in the dark and you cum without your girlfriend knowing then ask her for a handjob she then goes to grab your dick and grabs a handfull of cum.
Me:Hey babe you should help me out with a handy
Baby:fine
Baby:WTF you asshole you pulled a Houdini handjob on me!
Baby:fine
Baby:WTF you asshole you pulled a Houdini handjob on me!