Light relief

This is a imaginary conversation using recent song titles that me and another colleague typed up using work messenger to secretly describe a secret affair we think is happening at work.

Note: Lyrics or Song titles are marked by " "

A: "I feel so untouched right now..."
A: "Touch my body"
B: "You want a piece of me?"
A: Yea
B: OK. "4 Minutes"
[After 4 minutes]
A: "Don't stop the music"
A: "Gimme gimme more, gimme more, gimme gimme more"
B: No. I'm "Lovestoned".
B: "I keep bleeding, keep keep bleeding love".
A: Can I have a "picture of you"?
B: Here. "Don't hold back".
B: "Just beat it, beat it, beat it, beat it....".

Interpret this any way you wish. =)

Can anyone recognise all the songs there? List them all out with the song title and artist if you can.