78-79 I've tried everywhere! Help Please!

This is either a promo or B-side played ina jukebox in late 78. I have tried every group (iteunes, etc). Girl group - similar to 3 Degrees sound. Song is 'sort of the speed' of 'Let's make a Deal' by Gloria Gaynor. Words of song are vague, but something about the guy staying till the morning comes (or sun comes up). Refrain at end is something like 'keep it coming' or 'keep on loving' said a few times. Also, within song perhaps somethingis said like 'love you the night through' or 'love you all night'...Chic, Sledge, Gaynor, 3 Degrees, etc. tuned up nothing, at least with albums checked. (Maybe a promo for these groups?) Maybe France Jolie, Odyssey, Love & Kisses? This is definitely not something which was in top 100, but, as said, either a B side or promo. I have gone through all lists and can still not find it....please help....!!!! Many thanks!!!!

Try "Don't stop it now" by Hot Chocolate

Hot Chocolate was a male band.

I believe the group she's looking for is The Jones Girls and the track is "Keep It Coming." A sample can be heard here.