What a winning track! Opening with Morricone-style 'boing' sounds, this is a sexy, funky pop song with interchanging female/male vocals and pounding drums.
The sub-genre of pop songs in this style, featuring flirting and laughing alongside groovy 60s backings, is under-appreciated. I can think of a few more examples: Piero Umiliani's 'Flirt a Rio', Marcos Valle's 'Ele e ela', and my previous recommendation, Ed Lincoln's 'Bon-jour'. Mina's 'Parole Parole' almost fits as well, although the interplay there is a bit more dramataic than flirtatious.
Confusingly, there's another track called "Love, L'Amour, Amore" by Gerhard Heinz, which appears on the "Melodies in Love" compilation of his work. But I gather from hearing a clip that this is a different track altogether.
from Birds Do It: Music From German Sex Education Movies of the 60's (Diggler Records DIG004), available on CD