A girl and her boyfriend go to the pub.  When it's the girl's turn
to buy a round, she tells him that she knows of a wonderful new
drink he simply must try.

She returns with the usual half of lager for herself. For him,
she has two glasses. One contains a measure of Bailey's,
the other lime juice. Instructions, she tells him,  "OK, what
you gotta do is, you gotta swig the Bailey's and hold it in
your mouth. And then drink the lime juice."

He looks a bit dubious, but she's very enthusiastic so he
decides to give it a go.

First the Bailey's; lovely smooth, creamy, warm feeling in
the mouth. Then he takes the lime juice.
T + 0.1 secs:  The cream in the Bailey's curdles.
T + 0.3 secs:  Boyfriend's face turns the color of fresh lime juice.
T + 0.6 secs:  Boyfriend calms his stomach & swallows the gunge.
T + 1.5 secs:  She whispers in his ear....

"It's called 'blowjob revenge'!"