The Seminal Fluids
From the novel Big Trouble (1999).
The band and song are also briefly mentioned in another Barry novel, Tricky Business, 2002:
"I feel a lot of love in this room," said Wally. "This calls for a very special song, a very romantic song, a very tender song for this very special lady, Connie, on her very special night." Then he stomped on his distortion pedal, cranked up his volume knob and slashed out the opening riff to "I Want Your Sex Pootie," by the Seminal Fluids. Jock caught it instantly and came in right behind him, and in a heartbeat everybody on the floor, including Strom Thurmond, was bouncing up and down, chanting with Wally...