Originally Posted by
The Drunkard Kid
IIRC, he only did that to Gohan because Goku (who Cell was designed to be obsessed with) specifically hyped Gohan up, and then Gohan piqued his interest by explicitly holding back out of fear of killing Cell. In addition to Super Perfect Cell being done screwing around and instantly going all out to blow up the entire solar system due to having been smacked in the face by a SSJ2 Gohan-shaped rake, he doesn't know Goten and Trunks at all (well, I guess that he kinda knows and is willing to instantly kill Trunks), they weren't introduced by Goku, and they wouldn't have anywhere near the ki-level of SSJ Gohan.