Nuzzle Therapy by blue harvest
Link - http://www.fimfiction.net/story/112006/1/nuzzle-therapy/but-its-like-vanilla-and-hayloft

"Rainbow Dash comes home to her marefriend Applejack.  After a busy day of farmwork, Applejack has some fruit that she needs to count.  Rainbow just wants to sniff her mane."

Music used - Sex and Candy (1997) by Marcy
I own nothing in this video.