I'm going to go with...

1. Hot Rod was in Transformers: Escalation with Optimus Prime.
2. Optimus Prime was in New Avengers / Transformers with Iron Man.
3. Iron Man was in Disaster Movie with Lisa.
4. Lisa was played by Kim Kardashian.
5. Kim Kardashian was in a sex tape with Ray J.
6. Ray J was in a sex tape with Kim Kardashian.

Kim Kardashian infiltrated in six degrees! (For some reason, Hot Rod insisted that the infiltration required those last two steps.)