I got a letter just the other day
She sent a picture, but she didn`t sign her name
She wore high heels and a little black lace
I knew her body, but I couldn`t see her face
She didn`t leave a number, not an address or a clue
But something in that photograph reminded me of you
Baby, let`s put the X in sex
Love`s like a muscle and you make me wanna flex
Baby, let`s put the X in sex
Keep it undercover, baby let me be your private eye
I got a call in the middle of the night
Heavy breathin` never sounded quite so nice
She said Oh yeah, I wish that I was there
I asked who was calling, but she wasn`t playing fair
Sometimes you gotta suffer for the pleasure that you seek
You`re beggin` for an eyeful but you only get a peek
Baby, let`s put the X in sex
Love`s like a muscle and you make me wanna flex
Baby, let`s put the X in sex
Keep it undercover, baby let me be your private eye
I heard somebody knockin` so I opened up the door
She wore a hat, shades, and a trench coat
Wasn`t wearin` that much more
She said she knew my secrets but I didn`t have a clue
Then I saw those black lace panties and I knew that it was you
Baby, let`s put the X in sex
Love`s like a muscle and you make me wanna flex
Baby, let`s put the X in sex
Keep it undercover, baby let me be your private eye
Let`s put the X in sex
Love`s like a muscle and you make me wanna flex
Baby, let`s put the X in sex
Keep it undercover, baby let me be your private eye
Let`s put the X in sex
Love`s like a muscle and you make me wanna flex
Baby, let`s put the X in sex
Keep it undercover, baby let me be your private eye
Let`s put the X in sex
Love`s like a muscle and you make me wanna flex
Baby, let`s put the X in sex