"Santa and the Blonde!" joke

One Christmas Eve, Santa Claus comes down the chimney and is startled by a beautiful 19 year old blonde. She asks "Santa, will you stay with me?"

Santa says, "Ho Ho Ho I gotta go, gotta go!
I gotta deliver these toys to the children, y'know!"

She takes off her nightgown, and wearing only a bra and panties, she asks "Santa, now will you stay with me?"

Santa says, "Ho Ho Ho I gotta go, gotta go!
I gotta deliver these toys to the children, y'know!"

She takes off everything and asks "Santa, now will you stay with me?"

Santa replies "Hey Hey Hey I gotta stay, gotta stay!
I can't get up the chimney with my dick this way!"