This story is a sequel to Scholarly Snuggles
After Twilight snuggles you (on Princess Celestia's orders) to learn about how the magic of cuddling relates to the magic of friendship, Twilight decides that her other friends should learn the same lesson- and sends you to Rainbow Dash first. Adorable cuddling and some surprising truths about Rainbow Dash (eventually) follow.
A sequel to "Scholarly Snuggles" and "Seraphic Snuggles", and the third story in the "Snuggles" series.