Soarin and Rainbow Dash have a strong chemistry with each other despite only meeting with each other briefly in their lives. Three days into welcoming Rainbow Dash into the Wonderbolts, despite Rainbows antics, Soarin has a huge crush on her and is not scared to make a move on the mare, no matter how steamy and flirtatious it gets.

This is rated mature since the writing goes into heavy detail, specifically with (marking, kissing, cuddling, teasing, pleasure of each other) but won't go into detail with any porn or sexual intercourse. since there really isn't any. Characters aged above 18+

Cover art source: azuradash on DeviantArt