Love Comes In All Shapes and Sizes (Bulkhead Love Story)

What if Xia wasn't the only transformer the Decepticons created? What if she had a sister? Enter Diesel. She is a rogue Autobot who has traveled through the war as a lone wolf. She along with her sister are loyal to the Autobot Cause but she has decided to do it alone. After Cybertron goes dead, she stumbles upons Earth and is re united with her "little sis". After the reunion, she decides to hit the road again. But when she grows fond of Team Prime's largest member, she finds it hard to leave. However, his charge might make leaving worth her while. With the war with the Decepticons still raging on, its up to Diesel whether she stays or goes. 

Prime universe ..