The married-to-be couple hasn't taken the baby out much since he was born just three months ago.
"He doesn't do car seats," Khalifa said at last night's Fast & Furious 6 premiere in Universal City. "He doesn't like them."
Rose explained, "Only from the hospital and that's it…He had a fit so we never put him back in the car seat."
Besides, Rose added, "He's getting his shots and stuff and we want to make sure he's safe so we don't want to take him out yet."
For more from the Fast & Furious premiere, check out E! News tonight at 7 p.m. and 11:30 p.m.