Green’s Dictionary of Slang

honeyfuck v.

[honey n.1 (1d) + fuck v.]
(US)

1. to have sexual intercourse in innocent or idyllic circumstances.

[US]Trimble 5000 Adult Sex Words and Phrases.
[US]L. Heinemann Paco’s Story (1987) 171: Paco hears Cathy honey-fucking the everlasting daylights out of some guy [...] the lovely sounds of their fucking filling the room.

2. to have sex with a prepubescent girl.

[US]Trimble 5000 Adult Sex Words and Phrases.
[US]R.A. Wilson Playboy’s Book of Forbidden Words.