Speed, secrets and steel. Knockout x Reader | Transformers: Prime

(Y/N) was from a big family. One day, her little brother, Rafael, begins to behave strangely, hanging out much more frequently with his new friends, mysterious and secret friends. At first (Y/N) thinks it's normal but then she starts to worry and investigate. At the same time she meets a mysterious driver at street races, with whom she reaches a mutual agreement that leads her to get to know him better despite not knowing his identity and to begin mysteriously disappearing from home more frequently as well. Will she discover his brother's secret? Will his brother discover hers? Will she discover the truth about this driver? What will happen when she finds out? Which feelings will begin to form? Or have they already begun to silently form in the depths of her heart?

This is a TFP Knockout x female human reader fanfiction.

Highests Ranks:
#1 in sierra - 25/2/26
#148 in war - 6/3/26
#1 in nevada - 28/2/26
#3 in transformers prime - 1/3/26
31# in femalereader - 2/3/26
2# in transformersprime - 18/3/26
1# in knockoutxreader - 26/3/26
6# in knockout - 4/4/26
2# in tfp - 7/7/26
3# in streetrace - 21/4/26
3# in streetracer - 21/4/26
7# in jackdarby - 21/4/26
117# in human - 21/4/26
1# in autobots - 5/5/26
1# in rafaelesqüivel - 5/5/26
76# in decepticons - 15/5/26
2# in transformers - 29/5/26

Frist time updated: Sun 22, Feb 2026